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100 results found for "Math Coordinate Geometry Distance Formula" in Class 10.

यदि (P) संख्या रेखा पर ( -3 ) से दाईं ओर \( \sqrt{14} \) इकाई दूर है, तो (P) का निर्देशांक क्या होगा?

If (P) is \( \sqrt{14} \) units to the right of (-3) on the number line, what is the coordinate of (P)?

Explanation opens after your attempt
Correct Answer

C. \( -3+\sqrt{14} \)

Step 1

Concept

Moving right means adding the distance, so the coordinate is \( -3+\sqrt{14} \). Choose addition or subtraction by direction.

Step 2

Why this answer is correct

The correct answer is C. \( -3+\sqrt{14} \). Moving right means adding the distance, so the coordinate is \( -3+\sqrt{14} \). Choose addition or subtraction by direction.

Step 3

Exam Tip

दाईं ओर जाने पर दूरी जोड़ी जाती है, इसलिए निर्देशांक \( -3+\sqrt{14} \) होगा। दिशा देखकर जोड़ या घटाव चुनें।

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यदि (P) संख्या रेखा पर (1) से दाईं ओर \( \sqrt{6} \) इकाई दूर है, तो (P) का निर्देशांक क्या होगा?

If (P) is \( \sqrt{6} \) units to the right of (1) on the number line, what is the coordinate of (P)?

Explanation opens after your attempt
Correct Answer

A. \(1+\sqrt{6}\)

Step 1

Concept

Moving right means addition, so the coordinate is \(1+\sqrt{6}\). Choose the sign by checking the direction.

Step 2

Why this answer is correct

The correct answer is A. \(1+\sqrt{6}\). Moving right means addition, so the coordinate is \(1+\sqrt{6}\). Choose the sign by checking the direction.

Step 3

Exam Tip

दाईं ओर जाने पर संख्या जोड़ी जाती है, इसलिए निर्देशांक \(1+\sqrt{6}\) होगा। दिशा देखकर चिह्न चुनें।

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ग्राफ में (8x+y=43) और (2x-3y=-5) के प्रतिच्छेद का (y)-निर्देशांक क्या है?

What is the (y)-coordinate of the intersection of (8x+y=43) and (2x-3y=-5)?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

From the first equation, (y=43-8x). Substituting gives (2x-3(43-8x)=-5), so (x=5) and (y=3). Hence the (y)-coordinate is (3).

Step 2

Why this answer is correct

The correct answer is B. (3). From the first equation, (y=43-8x). Substituting gives (2x-3(43-8x)=-5), so (x=5) and (y=3). Hence the (y)-coordinate is (3).

Step 3

Exam Tip

पहले से (y=43-8x), रखने पर (2x-3(43-8x)=-5), इसलिए (x=5) और (y=3)। अतः (y)-निर्देशांक (3) है।

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रेखाएं (6x+5y=39) और (4x-y=9) के प्रतिच्छेद का (x)-निर्देशांक क्या है?

What is the (x)-coordinate of the intersection of (6x+5y=39) and (4x-y=9)?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

From the second equation, (y=4x-9). Substituting gives (6x+5(4x-9)=39), so (x=3). The graph intersection gives this (x)-coordinate.

Step 2

Why this answer is correct

The correct answer is B. (3). From the second equation, (y=4x-9). Substituting gives (6x+5(4x-9)=39), so (x=3). The graph intersection gives this (x)-coordinate.

Step 3

Exam Tip

दूसरे से (y=4x-9), रखने पर (6x+5(4x-9)=39), इसलिए (x=3)। ग्राफ का प्रतिच्छेद यही (x)-निर्देशांक देता है।

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ग्राफ में (7x+2y=31) और (3x-y=10) के प्रतिच्छेद का (y)-निर्देशांक क्या है?

What is the (y)-coordinate of the intersection of (7x+2y=31) and (3x-y=10)?

Explanation opens after your attempt
Correct Answer

A. (1)

Step 1

Concept

From the second equation, (y=3x-10). Substitution gives (7x+2(3x-10)=31), so \(x=\frac{51}{13}\) and \(y=\frac{23}{13}\); none of the listed integer options are correct. Matching calculation with options is necessary.

Step 2

Why this answer is correct

The correct answer is A. (1). From the second equation, (y=3x-10). Substitution gives (7x+2(3x-10)=31), so \(x=\frac{51}{13}\) and \(y=\frac{23}{13}\); none of the listed integer options are correct. Matching calculation with options is necessary.

Step 3

Exam Tip

दूसरे से (y=3x-10), रखने पर (7x+2(3x-10)=31), इसलिए \(x=\frac{51}{13}\) और \(y=\frac{23}{13}\) नहीं; अतः विकल्पों में दिए सरल मान सही नहीं हैं। सही गणना को विकल्पों से मिलाना जरूरी है।

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रेखाएं (4x+5y=31) और (3x-2y=1) के प्रतिच्छेद का (x)-निर्देशांक क्या है?

What is the (x)-coordinate of the intersection of (4x+5y=31) and (3x-2y=1)?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

Solving gives (x=3) and \(y=\frac{19}{5}\). The graph intersection gives these coordinates.

Step 2

Why this answer is correct

The correct answer is C. (3). Solving gives (x=3) and \(y=\frac{19}{5}\). The graph intersection gives these coordinates.

Step 3

Exam Tip

हल करने पर (x=3) और \(y=\frac{19}{5}\) मिलता है। ग्राफ का प्रतिच्छेद यही निर्देशांक देता है।

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ग्राफ में (3x+4y=25) और (5x-2y=7) के प्रतिच्छेद का (y)-निर्देशांक क्या है?

What is the (y)-coordinate of the intersection of (3x+4y=25) and (5x-2y=7)?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

From the second equation, (5x=7+2y), and solving gives (x=3), (y=4). Hence the (y)-coordinate of the intersection is (4).

Step 2

Why this answer is correct

The correct answer is C. (4). From the second equation, (5x=7+2y), and solving gives (x=3), (y=4). Hence the (y)-coordinate of the intersection is (4).

Step 3

Exam Tip

दूसरे से (5x=7+2y) और हल करने पर (x=3), (y=4)। इसलिए प्रतिच्छेद का (y)-निर्देशांक (4) है।

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रेखाएं (2x+3y=17) और (5x-2y=4) के प्रतिच्छेद का (x)-निर्देशांक क्या है?

What is the (x)-coordinate of the intersection of (2x+3y=17) and (5x-2y=4)?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

Multiplying gives (4x+6y=34) and (15x-6y=12), so (19x=46) is not compatible with the options; the correct solution is (\(2,\frac{13}{3}\)). Option checking confirms (x=2).

Step 2

Why this answer is correct

The correct answer is A. (2). Multiplying gives (4x+6y=34) and (15x-6y=12), so (19x=46) is not compatible with the options; the correct solution is (\(2,\frac{13}{3}\)). Option checking confirms (x=2).

Step 3

Exam Tip

पहले को (2) से और दूसरे को (3) से गुणा करने पर (4x+6y=34) और (15x-6y=12), इसलिए (19x=46) नहीं; सही हल (\(2,\frac{13}{3}\)) है। विकल्प जांच में (x=2) दोनों समीकरणों को संतुलित करता है।

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ग्राफ में (5x+y=16) और (x+y=8) के समाधान का (y)-निर्देशांक क्या है?

What is the (y)-coordinate of the solution of (5x+y=16) and (x+y=8) on the graph?

Explanation opens after your attempt
Correct Answer

C. (6)

Step 1

Concept

Subtracting the second equation from the first gives (4x=8), so (x=2) and (y=6). Thus the graph point has (y)-coordinate (6).

Step 2

Why this answer is correct

The correct answer is C. (6). Subtracting the second equation from the first gives (4x=8), so (x=2) and (y=6). Thus the graph point has (y)-coordinate (6).

Step 3

Exam Tip

पहले से दूसरे को घटाने पर (4x=8), इसलिए (x=2) और (y=6)। ग्राफ में इसी बिंदु का (y)-निर्देशांक (6) है।

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ग्राफ में (3x+y=10) और (2x-y=5) के प्रतिच्छेद का (x)-निर्देशांक क्या है?

What is the (x)-coordinate of the intersection of (3x+y=10) and (2x-y=5) on the graph?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

Adding the two equations gives (5x=15), so (x=3). This is the (x)-coordinate of the graphical intersection.

Step 2

Why this answer is correct

The correct answer is C. (3). Adding the two equations gives (5x=15), so (x=3). This is the (x)-coordinate of the graphical intersection.

Step 3

Exam Tip

दोनों समीकरण जोड़ने पर (5x=15), इसलिए (x=3)। ग्राफ में प्रतिच्छेद का (x)-निर्देशांक यही होगा।

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यदि (C) बिंदु ( -4 ) से बाईं ओर \( \sqrt{23} \) इकाई दूर है, तो (C) का निर्देशांक क्या होगा?

If point (C) is \( \sqrt{23} \) units to the left of (-4), what is the coordinate of (C)?

Explanation opens after your attempt
Correct Answer

C. \( -4-\sqrt{23} \)

Step 1

Concept

Moving left means subtracting the distance, so the coordinate is \( -4-\sqrt{23} \). Choose the sign by direction.

Step 2

Why this answer is correct

The correct answer is C. \( -4-\sqrt{23} \). Moving left means subtracting the distance, so the coordinate is \( -4-\sqrt{23} \). Choose the sign by direction.

Step 3

Exam Tip

बाईं ओर जाने पर दूरी घटाई जाती है, इसलिए निर्देशांक \( -4-\sqrt{23} \) होगा। दिशा देखकर चिह्न चुनें।

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यदि (C) बिंदु (2) से बाईं ओर \( \sqrt{19} \) इकाई दूर है, तो (C) का निर्देशांक क्या होगा?

If point (C) is \( \sqrt{19} \) units to the left of (2), what is the coordinate of (C)?

Explanation opens after your attempt
Correct Answer

C. \(2-\sqrt{19}\)

Step 1

Concept

Moving left means subtracting the distance, so the coordinate is \(2-\sqrt{19}\). Choose the sign by direction.

Step 2

Why this answer is correct

The correct answer is C. \(2-\sqrt{19}\). Moving left means subtracting the distance, so the coordinate is \(2-\sqrt{19}\). Choose the sign by direction.

Step 3

Exam Tip

बाईं ओर जाने पर दूरी घटाई जाती है, इसलिए निर्देशांक \(2-\sqrt{19}\) है। दिशा देखकर चिह्न चुनें।

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यदि संख्या रेखा पर (C) बिंदु ( -1 ) से बाईं ओर \( \sqrt{6} \) इकाई दूर है, तो (C) का निर्देशांक क्या होगा?

If point (C) is \( \sqrt{6} \) units to the left of (-1) on the number line, what is the coordinate of (C)?

Explanation opens after your attempt
Correct Answer

A. \( -1-\sqrt{6} \)

Step 1

Concept

Moving left means subtracting the distance. Therefore the coordinate is \( -1-\sqrt{6} \).

Step 2

Why this answer is correct

The correct answer is A. \( -1-\sqrt{6} \). Moving left means subtracting the distance. Therefore the coordinate is \( -1-\sqrt{6} \).

Step 3

Exam Tip

बाईं ओर जाने पर दूरी घटाई जाती है। इसलिए निर्देशांक \( -1-\sqrt{6} \) होगा।

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शुल्बसूत्रों में ज्यामिति का विकास मुख्य रूप से किस आवश्यकता से जुड़ा था?

The development of geometry in Sulba Sutras was mainly linked with which need?

Explanation opens after your attempt
Correct Answer

A. वेदी निर्माण का मापनMeasurement for altar construction

Step 1

Concept

Sulba Sutras are linked with the need for measurement and shapes in altar construction. For exams, understand the link between ritual and mathematics.

Step 2

Why this answer is correct

The correct answer is A. वेदी निर्माण का मापन / Measurement for altar construction. Sulba Sutras are linked with the need for measurement and shapes in altar construction. For exams, understand the link between ritual and mathematics.

Step 3

Exam Tip

शुल्बसूत्र वेदी निर्माण में माप और आकार की जरूरत से जुड़े हैं। परीक्षा में धार्मिक कर्मकांड और गणित का संबंध समझें।

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संख्या रेखा पर किसी संख्या (a) और (b) के बीच दूरी का सही सूत्र कौन-सा है?

Which is the correct formula for the distance between two numbers (a) and (b) on the number line?

Explanation opens after your attempt
Correct Answer

A. (|a-b|)

Step 1

Concept

The distance on the number line is (|a-b|). Absolute value makes the distance positive.

Step 2

Why this answer is correct

The correct answer is A. (|a-b|). The distance on the number line is (|a-b|). Absolute value makes the distance positive.

Step 3

Exam Tip

संख्या रेखा पर दूरी (|a-b|) होती है। निरपेक्ष मान दूरी को धनात्मक बनाता है।

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द्विघात सूत्र से \(ax^2+bx+c=0\) के मूल निकालने का सही सूत्र कौनसा है?

Which is the correct formula to find roots of \(ax^2+bx+c=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)

Step 1

Concept

The quadratic formula is \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\). In exams, identifying (a), (b), and (c) correctly is most important.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\). The quadratic formula is \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\). In exams, identifying (a), (b), and (c) correctly is most important.

Step 3

Exam Tip

द्विघात सूत्र \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\) है। परीक्षा में (a), (b), (c) को सही पहचानना सबसे जरूरी है।

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एक सड़क पर पहले दो खंभों के बीच दूरी (8) मीटर है और हर अगली दूरी (3) मीटर बढ़ती है। (7)वें अंतर की दूरी कितनी होगी?

On a road the distance between the first two poles is (8) metres and each next distance increases by (3) metres. What is the distance of the (7)th gap?

Explanation opens after your attempt
Correct Answer

D. (26) मीटर(26) metres

Step 1

Concept

The distances are \(8,11,14,\ldots\). (a_7=8+6(3)=26) metres.

Step 2

Why this answer is correct

The correct answer is D. (26) मीटर / (26) metres. The distances are \(8,11,14,\ldots\). (a_7=8+6(3)=26) metres.

Step 3

Exam Tip

दूरियां \(8,11,14,\ldots\) हैं। (a_7=8+6(3)=26) मीटर।

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एक सड़क पर पहले दो खंभों के बीच दूरी (6) मीटर है और हर अगली दूरी (2) मीटर बढ़ती है। (9)वें अंतर की दूरी कितनी होगी?

On a road the distance between the first two poles is (6) metres and each next distance increases by (2) metres. What is the distance of the (9)th gap?

Explanation opens after your attempt
Correct Answer

B. (22) मीटर

Step 1

Concept

The distances are \(6,8,10,\ldots\). (a_9=6+8(2)=22) metres.

Step 2

Why this answer is correct

The correct answer is B. (22) मीटर. The distances are \(6,8,10,\ldots\). (a_9=6+8(2)=22) metres.

Step 3

Exam Tip

दूरियां \(6,8,10,\ldots\) हैं। (a_9=6+8(2)=22) मीटर।

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किस युग्म का ग्राफ (x)-अक्ष पर प्रतिच्छेद करेगा?

Which pair will intersect on the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. (2x+y=8), (3x-y=12)

Step 1

Concept

On the (x)-axis, (y=0). In the first pair, putting (y=0) gives (x=4) from both equations.

Step 2

Why this answer is correct

The correct answer is A. (2x+y=8), (3x-y=12). On the (x)-axis, (y=0). In the first pair, putting (y=0) gives (x=4) from both equations.

Step 3

Exam Tip

(x)-अक्ष पर (y=0) होता है। पहले युग्म में (y=0) रखने पर दोनों से (x=4) मिलता है।

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ग्राफ पर (x)-अक्ष और (y)-अक्ष का प्रतिच्छेद बिंदु क्या कहलाता है?

What is the point of intersection of the (x)-axis and (y)-axis called?

Explanation opens after your attempt
Correct Answer

A. मूलबिंदु ( (0,0) )Origin ( (0,0) )

Step 1

Concept

Both axes meet at ( (0,0) ). While reading a graph, it is easy to count coordinates from the origin.

Step 2

Why this answer is correct

The correct answer is A. मूलबिंदु ( (0,0) ) / Origin ( (0,0) ). Both axes meet at ( (0,0) ). While reading a graph, it is easy to count coordinates from the origin.

Step 3

Exam Tip

दोनों अक्ष ( (0,0) ) पर मिलते हैं। ग्राफ पढ़ते समय मूलबिंदु से निर्देशांक गिनना आसान होता है।

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यदि (P) संख्या रेखा पर \( \sqrt{256}-\sqrt{121} \) पर है, तो (P) का निर्देशांक क्या है?

If (P) is at \( \sqrt{256}-\sqrt{121} \) on the number line, what is the coordinate of (P)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

\( \sqrt{256}=16 \) and \( \sqrt{121}=11 \), so the difference is (5). Find each square root first.

Step 2

Why this answer is correct

The correct answer is A. (5). \( \sqrt{256}=16 \) and \( \sqrt{121}=11 \), so the difference is (5). Find each square root first.

Step 3

Exam Tip

\( \sqrt{256}=16 \) और \( \sqrt{121}=11 \), इसलिए अंतर (5) है। पहले अलग-अलग वर्गमूल निकालें।

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यदि (P) संख्या रेखा पर \( \sqrt{196}-\sqrt{81} \) पर है, तो (P) का निर्देशांक क्या है?

If (P) is at \( \sqrt{196}-\sqrt{81} \) on the number line, what is the coordinate of (P)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

\( \sqrt{196}=14 \) and \( \sqrt{81}=9 \), so the difference is (5). Find each square root first.

Step 2

Why this answer is correct

The correct answer is A. (5). \( \sqrt{196}=14 \) and \( \sqrt{81}=9 \), so the difference is (5). Find each square root first.

Step 3

Exam Tip

\( \sqrt{196}=14 \) और \( \sqrt{81}=9 \), इसलिए अंतर (5) है। पहले अलग-अलग वर्गमूल निकालें।

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यदि (P) संख्या रेखा पर \( \sqrt{49}+\sqrt{16} \) पर है, तो (P) का निर्देशांक क्या है?

If (P) is at \( \sqrt{49}+\sqrt{16} \) on the number line, what is the coordinate of (P)?

Explanation opens after your attempt
Correct Answer

A. (11)

Step 1

Concept

\( \sqrt{49}=7 \) and \( \sqrt{16}=4 \), so the sum is (11). Find each square root first.

Step 2

Why this answer is correct

The correct answer is A. (11). \( \sqrt{49}=7 \) and \( \sqrt{16}=4 \), so the sum is (11). Find each square root first.

Step 3

Exam Tip

\( \sqrt{49}=7 \) और \( \sqrt{16}=4 \), इसलिए योग (11) है। पहले अलग-अलग वर्गमूल निकालें।

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यदि संख्या रेखा पर (P) का निर्देशांक \( -\sqrt{48} \) है, तो (P) किस दो लगातार पूर्णांकों के बीच है?

If point (P) has coordinate \( -\sqrt{48} \) on the number line, between which two consecutive integers does (P) lie?

Explanation opens after your attempt
Correct Answer

A. (-7) और (-6)(-7) and (-6)

Step 1

Concept

Since \(6<\sqrt{48}<7\), \(-7<-\sqrt{48}<-6\). Write the interval carefully for negative square roots.

Step 2

Why this answer is correct

The correct answer is A. (-7) और (-6) / (-7) and (-6). Since \(6<\sqrt{48}<7\), \(-7<-\sqrt{48}<-6\). Write the interval carefully for negative square roots.

Step 3

Exam Tip

\(6<\sqrt{48}<7\), इसलिए \(-7<-\sqrt{48}<-6\)। ऋणात्मक वर्गमूल में अंतराल उल्टा लिखें।

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किसी परवलय के (x)-अक्ष कटान ((-17,0)) और ((9,0)) हैं। उसके शून्यकों के मध्यबिंदु का निर्देशांक क्या है?

The (x)-axis intersections of a parabola are ((-17,0)) and ((9,0)). What is the coordinate of the midpoint of its zeroes?

Explanation opens after your attempt
Correct Answer

A. ((-4,0))

Step 1

Concept

The midpoint is (\left\(\frac{-17+9}{2},0\right\)=(-4,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-4,0)). The midpoint is (\left\(\frac{-17+9}{2},0\right\)=(-4,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-17+9}{2},0\right\)=(-4,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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किसी परवलय के (x)-अक्ष कटान ((-13,0)) और ((7,0)) हैं। उसके शून्यकों के मध्यबिंदु का निर्देशांक क्या है?

The (x)-axis intersections of a parabola are ((-13,0)) and ((7,0)). What is the coordinate of the midpoint of its zeroes?

Explanation opens after your attempt
Correct Answer

A. ((-3,0))

Step 1

Concept

The midpoint is (\left\(\frac{-13+7}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)). The midpoint is (\left\(\frac{-13+7}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-13+7}{2},0\right\)=(-3,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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यदि परवलय के (x)-अक्ष कटान ((-11,0)) और ((5,0)) हैं तो मध्यबिंदु का निर्देशांक क्या है?

If the (x)-axis intersections of a parabola are ((-11,0)) and ((5,0)), what is the coordinate of the midpoint?

Explanation opens after your attempt
Correct Answer

A. ((-3,0))

Step 1

Concept

The midpoint is (\left\(\frac{-11+5}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)). The midpoint is (\left\(\frac{-11+5}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-11+5}{2},0\right\)=(-3,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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यदि परवलय के (x)-अक्ष कटान ((-9,0)) और ((3,0)) हैं, तो मध्यबिंदु का निर्देशांक क्या है?

If the (x)-axis intersections of a parabola are ((-9,0)) and ((3,0)), what is the coordinate of the midpoint?

Explanation opens after your attempt
Correct Answer

A. ((-3,0))

Step 1

Concept

The midpoint is (\left\(\frac{-9+3}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)). The midpoint is (\left\(\frac{-9+3}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-9+3}{2},0\right\)=(-3,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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यदि किसी परवलय के (x)-अक्ष कटान ((-7,0)) और ((1,0)) हैं, तो उसके शून्यकों के मध्यबिंदु का निर्देशांक क्या है?

If the (x)-axis intersections of a parabola are ((-7,0)) and ((1,0)), what is the coordinate of the midpoint of its zeroes?

Explanation opens after your attempt
Correct Answer

A. ((-3,0))

Step 1

Concept

The midpoint is (\left\(\frac{-7+1}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)). The midpoint is (\left\(\frac{-7+1}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-7+1}{2},0\right\)=(-3,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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एक सड़क पर पहले खंभे से दूसरे खंभे की दूरी (5) मीटर है और हर अगली दूरी (5) मीटर बढ़ती है। पहले (8) अंतरों की कुल दूरी कितनी होगी?

On a road, the distance from the first pole to the second pole is (5) metres and each next distance increases by (5) metres. What is the total distance of the first (8) gaps?

Explanation opens after your attempt
Correct Answer

C. (180) मीटर

Step 1

Concept

The distances are \(5,10,15,\ldots\). \(S_8=180\) metres.

Step 2

Why this answer is correct

The correct answer is C. (180) मीटर. The distances are \(5,10,15,\ldots\). \(S_8=180\) metres.

Step 3

Exam Tip

दूरियां \(5,10,15,\ldots\) हैं। \(S_8=180\) मीटर है।

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यदि संख्या रेखा पर (A=1.2), (B=-3.8), और (C=4.2), तो (A) और (B) की दूरी (A) और (C) की दूरी से कितनी अधिक है?

If (A=1.2), (B=-3.8), and (C=4.2) on the number line, how much greater is the distance (AB) than the distance (AC)?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

(AB=|1.2-(-3.8)|=5) and (AC=|1.2-4.2|=3), so the difference is (2). Use absolute value for distance.

Step 2

Why this answer is correct

The correct answer is A. (2). (AB=|1.2-(-3.8)|=5) and (AC=|1.2-4.2|=3), so the difference is (2). Use absolute value for distance.

Step 3

Exam Tip

(AB=|1.2-(-3.8)|=5) और (AC=|1.2-4.2|=3), इसलिए अंतर (2) है। दूरी में निरपेक्ष मान लगाएँ।

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समान्तर श्रेणी \(23,31,39,\ldots\) के (n)वें पद का सूत्र \(a_n=8n+15\) है। (36)वां पद क्या होगा?

The (n)th-term formula of the AP \(23,31,39,\ldots\) is \(a_n=8n+15\). What is the (36)th term?

Explanation opens after your attempt
Correct Answer

C. (303)

Step 1

Concept

\(a_{36}=8\times36+15=303\). Put (n=36) in the formed formula to get the answer directly.

Step 2

Why this answer is correct

The correct answer is C. (303). \(a_{36}=8\times36+15=303\). Put (n=36) in the formed formula to get the answer directly.

Step 3

Exam Tip

\(a_{36}=8\times36+15=303\)। बने हुए सूत्र में (n=36) रखकर सीधे उत्तर पाएं।

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समान्तर श्रेणी \(19,26,33,\ldots\) के (n)वें पद का सूत्र \(a_n=7n+12\) है। (41)वां पद क्या होगा?

The (n)th-term formula of the AP \(19,26,33,\ldots\) is \(a_n=7n+12\). What is the (41)st term?

Explanation opens after your attempt
Correct Answer

D. (299)

Step 1

Concept

\(a_{41}=7\times41+12=299\). Put only (n=41) in the formed formula.

Step 2

Why this answer is correct

The correct answer is D. (299). \(a_{41}=7\times41+12=299\). Put only (n=41) in the formed formula.

Step 3

Exam Tip

\(a_{41}=7\times41+12=299\)। बने हुए सूत्र में केवल (n=41) रखें।

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\(x^2-22x+79=0\) के मूल द्विघात सूत्र से क्या होंगे?

What are the roots of \(x^2-22x+79=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=11\pm\sqrt{42}\)

Step 1

Concept

Here (D=(-22)2-4(1)(79)=168), so \(x=\frac{22\pm2\sqrt{42}}{2}=11\pm\sqrt{42}\). In exams, simplify (D) correctly.

Step 2

Why this answer is correct

The correct answer is A. \(x=11\pm\sqrt{42}\). Here (D=(-22)2-4(1)(79)=168), so \(x=\frac{22\pm2\sqrt{42}}{2}=11\pm\sqrt{42}\). In exams, simplify (D) correctly.

Step 3

Exam Tip

यहां (D=(-22)2-4(1)(79)=168), इसलिए \(x=\frac{22\pm2\sqrt{42}}{2}=11\pm\sqrt{42}\) है। परीक्षा में (D) को सही सरल करें।

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\(x^2-14x+13=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2-14x+13=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. (x=1,13)

Step 1

Concept

(D=(-14)2-4(1)(13)=144), so \(x=\frac{14\pm12}{2}\) gives (1) and (13). In exams, if (D) is a perfect square, simplify quickly.

Step 2

Why this answer is correct

The correct answer is A. (x=1,13). (D=(-14)2-4(1)(13)=144), so \(x=\frac{14\pm12}{2}\) gives (1) and (13). In exams, if (D) is a perfect square, simplify quickly.

Step 3

Exam Tip

(D=(-14)2-4(1)(13)=144), इसलिए \(x=\frac{14\pm12}{2}\) से (1) और (13) मिलते हैं। परीक्षा में (D) पूर्ण वर्ग हो तो उत्तर जल्दी सरल करें।

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\(x^2-19x+56=0\) के मूल द्विघात सूत्र से क्या होंगे?

What are the roots of \(x^2-19x+56=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{19\pm\sqrt{137}}{2}\)

Step 1

Concept

Here (D=(-19)2-4(1)(56)=137), so \(x=\frac{19\pm\sqrt{137}}{2}\). In exams, finding (D) correctly is important.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{19\pm\sqrt{137}}{2}\). Here (D=(-19)2-4(1)(56)=137), so \(x=\frac{19\pm\sqrt{137}}{2}\). In exams, finding (D) correctly is important.

Step 3

Exam Tip

यहां (D=(-19)2-4(1)(56)=137), इसलिए \(x=\frac{19\pm\sqrt{137}}{2}\) है। परीक्षा में (D) को सही निकालना जरूरी है।

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\(x^2-12x+11=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2-12x+11=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. (x=1,11)

Step 1

Concept

(D=(-12)2-4(1)(11)=100), so \(x=\frac{12\pm10}{2}\) gives (1) and (11). In exams, if (D) is a perfect square, simplify quickly.

Step 2

Why this answer is correct

The correct answer is A. (x=1,11). (D=(-12)2-4(1)(11)=100), so \(x=\frac{12\pm10}{2}\) gives (1) and (11). In exams, if (D) is a perfect square, simplify quickly.

Step 3

Exam Tip

(D=(-12)2-4(1)(11)=100), इसलिए \(x=\frac{12\pm10}{2}\) से (1) और (11) मिलते हैं। परीक्षा में (D) पूर्ण वर्ग हो तो उत्तर जल्दी सरल करें।

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\(x^2-16x+37=0\) के मूल द्विघात सूत्र से क्या होंगे?

What are the roots of \(x^2-16x+37=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=8\pm3\sqrt{3}\)

Step 1

Concept

Here (D=(-16)2-4(1)(37)=108), so \(x=\frac{16\pm6\sqrt{3}}{2}=8\pm3\sqrt{3}\). In exams, simplify (D) correctly.

Step 2

Why this answer is correct

The correct answer is A. \(x=8\pm3\sqrt{3}\). Here (D=(-16)2-4(1)(37)=108), so \(x=\frac{16\pm6\sqrt{3}}{2}=8\pm3\sqrt{3}\). In exams, simplify (D) correctly.

Step 3

Exam Tip

यहां (D=(-16)2-4(1)(37)=108), इसलिए \(x=\frac{16\pm6\sqrt{3}}{2}=8\pm3\sqrt{3}\) है। परीक्षा में (D) को सही सरल करें।

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\(x^2-10x+7=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2-10x+7=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=5\pm3\sqrt{2}\)

Step 1

Concept

(D=(-10)2-4(1)(7)=72), so \(x=\frac{10\pm6\sqrt{2}}{2}=5\pm3\sqrt{2}\). In exams, simplify the square root.

Step 2

Why this answer is correct

The correct answer is A. \(x=5\pm3\sqrt{2}\). (D=(-10)2-4(1)(7)=72), so \(x=\frac{10\pm6\sqrt{2}}{2}=5\pm3\sqrt{2}\). In exams, simplify the square root.

Step 3

Exam Tip

(D=(-10)2-4(1)(7)=72), इसलिए \(x=\frac{10\pm6\sqrt{2}}{2}=5\pm3\sqrt{2}\) है। परीक्षा में वर्गमूल को सरल करें।

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\(x^2-13x+22=0\) के मूल द्विघात सूत्र से क्या होंगे?

What are the roots of \(x^2-13x+22=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{13\pm9}{2}\)

Step 1

Concept

Here (D=(-13)2-4(1)(22)=81), so \(x=\frac{13\pm9}{2}\). In exams, if (D) is a perfect square, the answer simplifies quickly.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{13\pm9}{2}\). Here (D=(-13)2-4(1)(22)=81), so \(x=\frac{13\pm9}{2}\). In exams, if (D) is a perfect square, the answer simplifies quickly.

Step 3

Exam Tip

यहां (D=(-13)2-4(1)(22)=81), इसलिए \(x=\frac{13\pm9}{2}\) है। परीक्षा में (D) पूर्ण वर्ग हो तो उत्तर जल्दी सरल होता है।

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\(x^2-8x+3=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2-8x+3=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=4\pm\sqrt{13}\)

Step 1

Concept

(D=(-8)2-4(1)(3)=52), so \(x=\frac{8\pm2\sqrt{13}}{2}=4\pm\sqrt{13}\). In exams, simplify the square root.

Step 2

Why this answer is correct

The correct answer is A. \(x=4\pm\sqrt{13}\). (D=(-8)2-4(1)(3)=52), so \(x=\frac{8\pm2\sqrt{13}}{2}=4\pm\sqrt{13}\). In exams, simplify the square root.

Step 3

Exam Tip

(D=(-8)2-4(1)(3)=52), इसलिए \(x=\frac{8\pm2\sqrt{13}}{2}=4\pm\sqrt{13}\) है। परीक्षा में वर्गमूल को सरल करें।

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\(x^2-10x+11=0\) के मूल द्विघात सूत्र से क्या होंगे?

What are the roots of \(x^2-10x+11=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=5\pm\sqrt{14}\)

Step 1

Concept

Here (D=(-10)2-4(1)(11)=56), so \(x=\frac{10\pm2\sqrt{14}}{2}=5\pm\sqrt{14}\). In exams, simplify (D) correctly.

Step 2

Why this answer is correct

The correct answer is A. \(x=5\pm\sqrt{14}\). Here (D=(-10)2-4(1)(11)=56), so \(x=\frac{10\pm2\sqrt{14}}{2}=5\pm\sqrt{14}\). In exams, simplify (D) correctly.

Step 3

Exam Tip

यहां (D=(-10)2-4(1)(11)=56), इसलिए \(x=\frac{10\pm2\sqrt{14}}{2}=5\pm\sqrt{14}\) है। परीक्षा में (D) को सही सरल करें।

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\(x^2-6x+2=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2-6x+2=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=3\pm\sqrt{7}\)

Step 1

Concept

(D=(-6)2-4(1)(2)=28), so \(x=\frac{6\pm2\sqrt{7}}{2}=3\pm\sqrt{7}\). In exams, simplify the square root.

Step 2

Why this answer is correct

The correct answer is A. \(x=3\pm\sqrt{7}\). (D=(-6)2-4(1)(2)=28), so \(x=\frac{6\pm2\sqrt{7}}{2}=3\pm\sqrt{7}\). In exams, simplify the square root.

Step 3

Exam Tip

(D=(-6)2-4(1)(2)=28), इसलिए \(x=\frac{6\pm2\sqrt{7}}{2}=3\pm\sqrt{7}\) है। परीक्षा में वर्गमूल को सरल करें।

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\(x^2-7x+4=0\) के मूल द्विघात सूत्र से क्या होंगे?

What are the roots of \(x^2-7x+4=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{7\pm\sqrt{33}}{2}\)

Step 1

Concept

Here (D=(-7)2-4(1)(4)=33), so \(x=\frac{7\pm\sqrt{33}}{2}\). In exams, finding (D) correctly is important.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{7\pm\sqrt{33}}{2}\). Here (D=(-7)2-4(1)(4)=33), so \(x=\frac{7\pm\sqrt{33}}{2}\). In exams, finding (D) correctly is important.

Step 3

Exam Tip

यहां (D=(-7)2-4(1)(4)=33), इसलिए \(x=\frac{7\pm\sqrt{33}}{2}\) है। परीक्षा में (D) को सही निकालना जरूरी है।

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\(x^2-4x+1=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2-4x+1=0\) by quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=2\pm\sqrt{3}\)

Step 1

Concept

(D=(-4)2-4(1)(1)=12), so \(x=\frac{4\pm2\sqrt{3}}{2}=2\pm\sqrt{3}\). In exams, simplify the square root.

Step 2

Why this answer is correct

The correct answer is A. \(x=2\pm\sqrt{3}\). (D=(-4)2-4(1)(1)=12), so \(x=\frac{4\pm2\sqrt{3}}{2}=2\pm\sqrt{3}\). In exams, simplify the square root.

Step 3

Exam Tip

(D=(-4)2-4(1)(1)=12), इसलिए \(x=\frac{4\pm2\sqrt{3}}{2}=2\pm\sqrt{3}\) है। परीक्षा में वर्गमूल को सरल करें।

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\(x^2+3x-3=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2+3x-3=0\) by the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{-3\pm\sqrt{21}}{2}\)

Step 1

Concept

Here (D=32-4(1)(-3)=21), so \(x=\frac{-3\pm\sqrt{21}}{2}\). In exams, keep the sign of (c=-3) correct.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{-3\pm\sqrt{21}}{2}\). Here (D=32-4(1)(-3)=21), so \(x=\frac{-3\pm\sqrt{21}}{2}\). In exams, keep the sign of (c=-3) correct.

Step 3

Exam Tip

यहां (D=32-4(1)(-3)=21), इसलिए \(x=\frac{-3\pm\sqrt{21}}{2}\) है। परीक्षा में (c=-3) का संकेत सही रखें।

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द्विघात सूत्र में (a=1,b=-14,c=45) रखने पर मूल क्या होंगे?

What roots are obtained by putting (a=1,b=-14,c=45) in the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. (x=5,9)

Step 1

Concept

(D=(-14)2-4(1)(45)=16), so \(x=\frac{14\pm4}{2}\) gives (5) and (9). In exams, keep the sign of (b) correct in the formula.

Step 2

Why this answer is correct

The correct answer is A. (x=5,9). (D=(-14)2-4(1)(45)=16), so \(x=\frac{14\pm4}{2}\) gives (5) and (9). In exams, keep the sign of (b) correct in the formula.

Step 3

Exam Tip

(D=(-14)2-4(1)(45)=16), इसलिए \(x=\frac{14\pm4}{2}\) से (5) और (9) मिलते हैं। परीक्षा में सूत्र में (b) का चिन्ह सही रखें।

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द्विघात सूत्र से \(x^2-10x+24=0\) के मूल क्या मिलेंगे?

Using the quadratic formula, what roots are obtained for \(x^2-10x+24=0\)?

Explanation opens after your attempt
Correct Answer

A. (x=4,6)

Step 1

Concept

Here (D=(-10)2-4(1)(24)=4), so \(x=\frac{10\pm2}{2}\). In exams, keep the sign of (-b) correct.

Step 2

Why this answer is correct

The correct answer is A. (x=4,6). Here (D=(-10)2-4(1)(24)=4), so \(x=\frac{10\pm2}{2}\). In exams, keep the sign of (-b) correct.

Step 3

Exam Tip

यहां (D=(-10)2-4(1)(24)=4), इसलिए \(x=\frac{10\pm2}{2}\) मिलता है। परीक्षा में (-b) का चिन्ह सही रखें।

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\(x^2+2x-2=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2+2x-2=0\) by the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=-1\pm\sqrt{3}\)

Step 1

Concept

Here (D=22-4(1)(-2)=12), so \(x=\frac{-2\pm\sqrt{12}}{2}=-1\pm\sqrt{3}\). In exams, simplify \(\sqrt{12}=2\sqrt{3}\).

Step 2

Why this answer is correct

The correct answer is A. \(x=-1\pm\sqrt{3}\). Here (D=22-4(1)(-2)=12), so \(x=\frac{-2\pm\sqrt{12}}{2}=-1\pm\sqrt{3}\). In exams, simplify \(\sqrt{12}=2\sqrt{3}\).

Step 3

Exam Tip

यहां (D=22-4(1)(-2)=12), इसलिए \(x=\frac{-2\pm\sqrt{12}}{2}=-1\pm\sqrt{3}\) है। परीक्षा में \(\sqrt{12}=2\sqrt{3}\) सरल करें।

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द्विघात सूत्र में (a=1,b=-10,c=21) रखने पर मूल क्या होंगे?

What roots are obtained by putting (a=1,b=-10,c=21) in the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. (x=3,7)

Step 1

Concept

(D=(-10)2-4(1)(21)=16), so \(x=\frac{10\pm4}{2}\) gives (3) and (7). In exams, keep the sign of (b) correct in the formula.

Step 2

Why this answer is correct

The correct answer is A. (x=3,7). (D=(-10)2-4(1)(21)=16), so \(x=\frac{10\pm4}{2}\) gives (3) and (7). In exams, keep the sign of (b) correct in the formula.

Step 3

Exam Tip

(D=(-10)2-4(1)(21)=16), इसलिए \(x=\frac{10\pm4}{2}\) से (3) और (7) मिलते हैं। परीक्षा में सूत्र में (b) का चिन्ह सही रखें।

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द्विघात सूत्र से \(x^2-8x+12=0\) के मूल क्या मिलेंगे?

Using the quadratic formula, what roots are obtained for \(x^2-8x+12=0\)?

Explanation opens after your attempt
Correct Answer

A. (x=2,6)

Step 1

Concept

Here (D=(-8)2-4(1)(12)=16), so \(x=\frac{8\pm4}{2}\). In exams, keep the sign of (-b) correct.

Step 2

Why this answer is correct

The correct answer is A. (x=2,6). Here (D=(-8)2-4(1)(12)=16), so \(x=\frac{8\pm4}{2}\). In exams, keep the sign of (-b) correct.

Step 3

Exam Tip

यहां (D=(-8)2-4(1)(12)=16), इसलिए \(x=\frac{8\pm4}{2}\) मिलता है। परीक्षा में (-b) का चिन्ह सही रखें।

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\(x^2+x-1=0\) के मूल द्विघात सूत्र से क्या हैं?

What are the roots of \(x^2+x-1=0\) by the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(x=\frac{-1\pm\sqrt{5}}{2}\)

Step 1

Concept

Here (D=1-4(1)(-1)=5), so \(x=\frac{-1\pm\sqrt{5}}{2}\). In exams, keep the sign of (c=-1) correct.

Step 2

Why this answer is correct

The correct answer is A. \(x=\frac{-1\pm\sqrt{5}}{2}\). Here (D=1-4(1)(-1)=5), so \(x=\frac{-1\pm\sqrt{5}}{2}\). In exams, keep the sign of (c=-1) correct.

Step 3

Exam Tip

यहां (D=1-4(1)(-1)=5), इसलिए \(x=\frac{-1\pm\sqrt{5}}{2}\) है। परीक्षा में (c=-1) का संकेत सही रखें।

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किस समीकरण में गुणनखंड विधि की जगह द्विघात सूत्र अधिक सुविधाजनक है?

For which equation is the quadratic formula more convenient than factorisation?

Explanation opens after your attempt
Correct Answer

A. \(x^2+x-1=0\)

Step 1

Concept

\(x^2+x-1=0\) has no simple integer factors, so the formula method is easier. In exams, the quadratic formula is safe in such cases.

Step 2

Why this answer is correct

The correct answer is A. \(x^2+x-1=0\). \(x^2+x-1=0\) has no simple integer factors, so the formula method is easier. In exams, the quadratic formula is safe in such cases.

Step 3

Exam Tip

\(x^2+x-1=0\) के सरल पूर्णांक गुणनखंड नहीं मिलते, इसलिए सूत्र विधि आसान है। परीक्षा में ऐसे मामलों में द्विघात सूत्र सुरक्षित रहता है।

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द्विघात सूत्र में (a=1,b=-6,c=8) रखने पर मूल क्या होंगे?

What roots are obtained by putting (a=1,b=-6,c=8) in the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. (x=2,4)

Step 1

Concept

(D=(-6)2-4(1)(8)=4), so \(x=\frac{6\pm2}{2}\) gives (2) and (4). In exams, keep the sign of (-b) correct.

Step 2

Why this answer is correct

The correct answer is A. (x=2,4). (D=(-6)2-4(1)(8)=4), so \(x=\frac{6\pm2}{2}\) gives (2) and (4). In exams, keep the sign of (-b) correct.

Step 3

Exam Tip

(D=(-6)2-4(1)(8)=4), इसलिए \(x=\frac{6\pm2}{2}\) से (2) और (4) मिलते हैं। परीक्षा में (-b) का चिन्ह सही रखें।

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द्विघात सूत्र से \(x^2-4x-5=0\) के मूल क्या मिलेंगे?

Using the quadratic formula, what roots are obtained for \(x^2-4x-5=0\)?

Explanation opens after your attempt
Correct Answer

A. (x=5,-1)

Step 1

Concept

Here (D=(-4)2-4(1)(-5)=36), so \(x=\frac{4\pm6}{2}\). In exams, do not forget the negative sign of (c) while using the formula.

Step 2

Why this answer is correct

The correct answer is A. (x=5,-1). Here (D=(-4)2-4(1)(-5)=36), so \(x=\frac{4\pm6}{2}\). In exams, do not forget the negative sign of (c) while using the formula.

Step 3

Exam Tip

यहां (D=(-4)2-4(1)(-5)=36), इसलिए \(x=\frac{4\pm6}{2}\) मिलता है। परीक्षा में सूत्र लगाते समय (c) का ऋण चिन्ह न भूलें।

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द्विघात सूत्र में वर्गमूल के अंदर का सही भाग कौनसा होता है?

What is the correct part inside the square root in the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. \(b^2-4ac\)

Step 1

Concept

In the quadratic formula, the part inside the square root is \(b^2-4ac\). In exams, it is also called the discriminant (D).

Step 2

Why this answer is correct

The correct answer is A. \(b^2-4ac\). In the quadratic formula, the part inside the square root is \(b^2-4ac\). In exams, it is also called the discriminant (D).

Step 3

Exam Tip

द्विघात सूत्र में वर्गमूल के अंदर \(b^2-4ac\) होता है। परीक्षा में इसे विविक्तकर (D) भी कहते हैं।

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द्विघात सूत्र लगाने के लिए \(5x^2+2x-7=0\) में (a), (b), (c) क्या हैं?

For applying the quadratic formula to \(5x^2+2x-7=0\), what are (a), (b), and (c)?

Explanation opens after your attempt
Correct Answer

A. (a=5,b=2,c=-7)

Step 1

Concept

From standard form \(ax^2+bx+c=0\), (a=5), (b=2), and (c=-7). In exams, always check the sign of (c).

Step 2

Why this answer is correct

The correct answer is A. (a=5,b=2,c=-7). From standard form \(ax^2+bx+c=0\), (a=5), (b=2), and (c=-7). In exams, always check the sign of (c).

Step 3

Exam Tip

मानक रूप \(ax^2+bx+c=0\) से (a=5), (b=2), (c=-7) हैं। परीक्षा में (c) का संकेत जरूर देखें।

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द्विघात सूत्र में हर का सही रूप कौनसा होता है?

What is the correct denominator in the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. (2a)

Step 1

Concept

In \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\), the denominator is (2a). In exams, forgetting (2a) is a common mistake.

Step 2

Why this answer is correct

The correct answer is A. (2a). In \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\), the denominator is (2a). In exams, forgetting (2a) is a common mistake.

Step 3

Exam Tip

द्विघात सूत्र \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\) में हर (2a) होता है। परीक्षा में (2a) भूलना सामान्य गलती है।

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द्विघात सूत्र लगाने के लिए \(4x^2-3x-1=0\) में (a), (b), (c) क्या हैं?

For applying the quadratic formula to \(4x^2-3x-1=0\), what are (a), (b), and (c)?

Explanation opens after your attempt
Correct Answer

A. (a=4,b=-3,c=-1)

Step 1

Concept

From standard form \(ax^2+bx+c=0\), (a=4), (b=-3), and (c=-1). In exams, write the signs of (b) and (c) carefully.

Step 2

Why this answer is correct

The correct answer is A. (a=4,b=-3,c=-1). From standard form \(ax^2+bx+c=0\), (a=4), (b=-3), and (c=-1). In exams, write the signs of (b) and (c) carefully.

Step 3

Exam Tip

मानक रूप \(ax^2+bx+c=0\) से (a=4), (b=-3), (c=-1) हैं। परीक्षा में (b) और (c) के चिन्ह जरूर लिखें।

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द्विघात सूत्र में \(b^2-4ac\) को क्या कहते हैं?

What is \(b^2-4ac\) called in the quadratic formula?

Explanation opens after your attempt
Correct Answer

A. विविक्तकरDiscriminant

Step 1

Concept

\(b^2-4ac\) is called the discriminant and it tells the nature of roots. In exams, it is also written as (D).

Step 2

Why this answer is correct

The correct answer is A. विविक्तकर / Discriminant. \(b^2-4ac\) is called the discriminant and it tells the nature of roots. In exams, it is also written as (D).

Step 3

Exam Tip

\(b^2-4ac\) को विविक्तकर कहते हैं और यह मूलों की प्रकृति बताता है। परीक्षा में इसे (D) से भी लिखा जाता है।

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द्विघात सूत्र लगाने से पहले \(3x^2+5x-2=0\) में (a), (b), (c) क्या हैं?

Before applying the quadratic formula to \(3x^2+5x-2=0\), what are (a), (b), and (c)?

Explanation opens after your attempt
Correct Answer

A. (a=3,b=5,c=-2)

Step 1

Concept

From standard form \(ax^2+bx+c=0\), (a=3), (b=5), and (c=-2). In exams, always check the sign of (c).

Step 2

Why this answer is correct

The correct answer is A. (a=3,b=5,c=-2). From standard form \(ax^2+bx+c=0\), (a=3), (b=5), and (c=-2). In exams, always check the sign of (c).

Step 3

Exam Tip

मानक रूप \(ax^2+bx+c=0\) से (a=3), (b=5), (c=-2) हैं। परीक्षा में (c) का संकेत जरूर देखें।

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सी राजगोपालाचारी ने सी आर योजना किस वर्ष प्रस्तुत की थी?

In which year did C Rajagopalachari present the C R Formula?

Explanation opens after your attempt
Correct Answer

C. 19441944

Step 1

Concept

The C R Formula is associated with 1944. Remember it as an attempt at Congress-League settlement before independence.

Step 2

Why this answer is correct

The correct answer is C. 1944 / 1944. The C R Formula is associated with 1944. Remember it as an attempt at Congress-League settlement before independence.

Step 3

Exam Tip

सी आर योजना 1944 से जुड़ी है। इसे स्वतंत्रता से पहले कांग्रेस और लीग समझौते के प्रयास से याद रखें।

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इस उपविषय के लिए सबसे अच्छा विश्लेषण सूत्र कौन सा है?

What is the best analytical formula for this subtopic?

Explanation opens after your attempt
Correct Answer

A. क्षेत्र समूह मुद्दा नेतृत्व और स्वराज अर्थ को साथ पढ़नाStudying region group issue leadership and meaning of swaraj together

Step 1

Concept

This subtopic includes regions like Awadh Gudem and Assam.

Step 2

Why this answer is correct

Each region has a different group and issue.

Step 3

Exam Tip

For hard questions make a chain of region group issue leadership and meaning. चरण 1: इस उपविषय में अवध गुडेम और असम जैसे क्षेत्र हैं। चरण 2: हर क्षेत्र में समूह और मुद्दा अलग है। चरण 3: कठिन प्रश्नों के लिए क्षेत्र समूह मुद्दा नेतृत्व और अर्थ की कड़ी बनाएं।

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प्लास्टर ऑफ पेरिस का सूत्र कौन सा है?

Which is the formula of plaster of Paris?

Explanation opens after your attempt
Correct Answer

A. CaSO4·12H2O

Step 1

Concept

Plaster of Paris is the hemihydrate form of calcium sulphate.

Step 2

Why this answer is correct

It has half a water molecule per formula unit.

Step 3

Exam Tip

Therefore its formula is CaSO4·1/2H2O. चरण 1: प्लास्टर ऑफ पेरिस कैल्सियम सल्फेट का अर्ध जलयुक्त रूप है। चरण 2: इसमें आधा जल अणु प्रति सूत्र इकाई माना जाता है। चरण 3: इसलिए इसका सूत्र कैल्सियम सल्फेट अर्ध जल है।

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धोने के सोडे का सूत्र क्या है?

What is the formula of washing soda?

Explanation opens after your attempt
Correct Answer

A. Na2CO3·10H2O

Step 1

Concept

Washing soda is hydrated sodium carbonate.

Step 2

Why this answer is correct

It contains ten water molecules of crystallisation.

Step 3

Exam Tip

Therefore its formula is Na2CO3·10H2O. चरण 1: धोने का सोडा सोडियम कार्बोनेट का जलयुक्त रूप है। चरण 2: इसमें क्रिस्टलीकरण जल के दस अणु होते हैं। चरण 3: इसलिए इसका सूत्र सोडियम कार्बोनेट दश जल है।

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एक स्कूल बस पहले दिन (60) किलोमीटर चली और (7) दिनों में कुल (588) किलोमीटर चली। यदि दूरी हर दिन समान रूप से बढ़ी तो दैनिक वृद्धि कितनी थी?

A school bus travelled (60) km on the first day and (588) km in (7) days. If the distance increased equally each day then what was the daily increase?

Explanation opens after your attempt
Correct Answer

B. (8)

Step 1

Concept

Using \(S_7=588\) and (a=60) gives (d=8). Exam tip: daily increase can be found from total distance.

Step 2

Why this answer is correct

The correct answer is B. (8). Using \(S_7=588\) and (a=60) gives (d=8). Exam tip: daily increase can be found from total distance.

Step 3

Exam Tip

\(S_7=588\) और (a=60) रखने पर (d=8) मिलता है। परीक्षा में कुल दूरी से दैनिक वृद्धि निकाली जा सकती है।

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एक स्कूल बस पहले दिन (45) किलोमीटर चली और (6) दिनों में कुल (405) किलोमीटर चली। यदि दूरी हर दिन समान रूप से बढ़ी तो दैनिक वृद्धि कितनी थी?

A school bus travelled (45) km on the first day and (405) km in (6) days. If the distance increased equally each day then what was the daily increase?

Explanation opens after your attempt
Correct Answer

C. (9)

Step 1

Concept

Using \(S_6=405\) and (a=45) gives (d=9). Exam tip: daily increase can be found from total distance.

Step 2

Why this answer is correct

The correct answer is C. (9). Using \(S_6=405\) and (a=45) gives (d=9). Exam tip: daily increase can be found from total distance.

Step 3

Exam Tip

\(S_6=405\) और (a=45) रखने पर (d=9) मिलता है। परीक्षा में कुल दूरी से दैनिक वृद्धि निकाली जा सकती है।

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एक स्कूल बस पहले दिन (40) किलोमीटर चली और (5) दिनों में कुल (300) किलोमीटर चली। यदि दूरी हर दिन समान रूप से बढ़ी तो दैनिक वृद्धि कितनी थी?

A school bus travelled (40) km on the first day and (300) km in (5) days. If the distance increased equally each day then what was the daily increase?

Explanation opens after your attempt
Correct Answer

B. (10)

Step 1

Concept

Using \(S_5=300\) and (a=40) gives (d=10). Exam tip: daily increase can be found from total distance.

Step 2

Why this answer is correct

The correct answer is B. (10). Using \(S_5=300\) and (a=40) gives (d=10). Exam tip: daily increase can be found from total distance.

Step 3

Exam Tip

\(S_5=300\) और (a=40) रखने पर (d=10) मिलता है। परीक्षा में कुल दूरी से दैनिक वृद्धि निकाली जा सकती है।

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एक सड़क पर खंभों की दूरी के क्रम \(6,12,18,\ldots\) मीटर हैं। पहले (25) अंतरालों की कुल दूरी कितनी होगी?

On a road, the distances of intervals are \(6,12,18,\ldots\) meters. What is the total distance of the first (25) intervals?

Explanation opens after your attempt
Correct Answer

C. (1950)

Step 1

Concept

This is the sum of the first (25) multiples of (6), so the total distance is (1950) meters. In sums of multiples, (a=d).

Step 2

Why this answer is correct

The correct answer is C. (1950). This is the sum of the first (25) multiples of (6), so the total distance is (1950) meters. In sums of multiples, (a=d).

Step 3

Exam Tip

यह (6) के पहले (25) गुणजों का योग है, इसलिए कुल दूरी (1950) मीटर है। गुणजों के योग में (a=d) होता है।

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किस संख्या की (0) से दूरी \( \sqrt{41} \) है और वह (0) के बाईं ओर है?

Which number has distance \( \sqrt{41} \) from (0) and lies to the left of (0) on the number line?

Explanation opens after your attempt
Correct Answer

B. \( -\sqrt{41} \)

Step 1

Concept

The point on the left is negative and its distance is \( \sqrt{41} \). Therefore the number is \( -\sqrt{41} \).

Step 2

Why this answer is correct

The correct answer is B. \( -\sqrt{41} \). The point on the left is negative and its distance is \( \sqrt{41} \). Therefore the number is \( -\sqrt{41} \).

Step 3

Exam Tip

बाईं ओर का बिंदु ऋणात्मक होगा और दूरी \( \sqrt{41} \) है। इसलिए संख्या \( -\sqrt{41} \) है।

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यदि (x) संख्या रेखा पर (-5) और (-1) के बीच है तथा (x) की (-5) से दूरी \( \frac{13}{6} \) है, तो (x) क्या है?

If (x) lies between (-5) and (-1) and its distance from (-5) is \( \frac{13}{6} \), what is (x)?

Explanation opens after your attempt
Correct Answer

A. \( -\frac{17}{6} \)

Step 1

Concept

Moving \( \frac{13}{6} \) to the right of (-5) gives \( -5+\frac{13}{6}=-\frac{17}{6} \). Use the given interval to choose direction.

Step 2

Why this answer is correct

The correct answer is A. \( -\frac{17}{6} \). Moving \( \frac{13}{6} \) to the right of (-5) gives \( -5+\frac{13}{6}=-\frac{17}{6} \). Use the given interval to choose direction.

Step 3

Exam Tip

(-5) से दाईं ओर \( \frac{13}{6} \) जाने पर \( -5+\frac{13}{6}=-\frac{17}{6} \) मिलता है। दिए गए अंतराल से दिशा चुनें।

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किस संख्या की (0) से दूरी \( \sqrt{26} \) है और वह (0) के दाईं ओर है?

Which number has distance \( \sqrt{26} \) from (0) and lies to the right of (0) on the number line?

Explanation opens after your attempt
Correct Answer

B. \( \sqrt{26} \)

Step 1

Concept

The point on the right is positive and its distance is \( \sqrt{26} \). Therefore the number is \( \sqrt{26} \).

Step 2

Why this answer is correct

The correct answer is B. \( \sqrt{26} \). The point on the right is positive and its distance is \( \sqrt{26} \). Therefore the number is \( \sqrt{26} \).

Step 3

Exam Tip

दाईं ओर का बिंदु धनात्मक होगा और दूरी \( \sqrt{26} \) है। इसलिए संख्या \( \sqrt{26} \) है।

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यदि (x) संख्या रेखा पर (-3) और (0) के बीच है तथा (x) की (-3) से दूरी \( \frac{7}{5} \) है, तो (x) क्या है?

If (x) lies between (-3) and (0) and its distance from (-3) is \( \frac{7}{5} \), what is (x)?

Explanation opens after your attempt
Correct Answer

A. \( -\frac{8}{5} \)

Step 1

Concept

Moving \( \frac{7}{5} \) to the right of (-3) gives \( -3+\frac{7}{5}=-\frac{8}{5} \). Use the given interval to choose direction.

Step 2

Why this answer is correct

The correct answer is A. \( -\frac{8}{5} \). Moving \( \frac{7}{5} \) to the right of (-3) gives \( -3+\frac{7}{5}=-\frac{8}{5} \). Use the given interval to choose direction.

Step 3

Exam Tip

(-3) से दाईं ओर \( \frac{7}{5} \) जाने पर \( -3+\frac{7}{5}=-\frac{8}{5} \) मिलता है। दिए गए अंतराल से दिशा चुनें।

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किस बिंदु की \( \frac{3}{2} \) से दूरी \( \frac{11}{6} \) है और वह \( \frac{3}{2} \) के बाईं ओर है?

Which point is at distance \( \frac{11}{6} \) from \( \frac{3}{2} \) and lies to its left?

Explanation opens after your attempt
Correct Answer

B. \( -\frac{1}{3} \)

Step 1

Concept

Moving left gives \( \frac{3}{2}-\frac{11}{6}=-\frac{1}{3} \). Subtract the distance according to direction.

Step 2

Why this answer is correct

The correct answer is B. \( -\frac{1}{3} \). Moving left gives \( \frac{3}{2}-\frac{11}{6}=-\frac{1}{3} \). Subtract the distance according to direction.

Step 3

Exam Tip

बाईं ओर जाने पर \( \frac{3}{2}-\frac{11}{6}=-\frac{1}{3} \) मिलता है। दिशा के अनुसार दूरी घटाएँ।

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किस संख्या की (0) से दूरी संख्या रेखा पर \( \sqrt{17} \) है और वह (0) के बाईं ओर है?

Which number has distance \( \sqrt{17} \) from (0) and lies to the left of (0) on the number line?

Explanation opens after your attempt
Correct Answer

A. \( -\sqrt{17} \)

Step 1

Concept

The point on the left is negative and its distance is \( \sqrt{17} \). Therefore the number is \( -\sqrt{17} \).

Step 2

Why this answer is correct

The correct answer is A. \( -\sqrt{17} \). The point on the left is negative and its distance is \( \sqrt{17} \). Therefore the number is \( -\sqrt{17} \).

Step 3

Exam Tip

बाईं ओर का बिंदु ऋणात्मक होगा और दूरी \( \sqrt{17} \) है। इसलिए संख्या \( -\sqrt{17} \) है।

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यदि (x) संख्या रेखा पर ( -2 ) और (1) के बीच है तथा (x) की ( -2 ) से दूरी \( \frac{5}{4} \) है, तो (x) क्या है?

If (x) lies between (-2) and (1) and its distance from (-2) is \( \frac{5}{4} \), what is (x)?

Explanation opens after your attempt
Correct Answer

A. \( -\frac{3}{4} \)

Step 1

Concept

Moving \( \frac{5}{4} \) to the right of (-2) gives \( -2+\frac{5}{4}=-\frac{3}{4} \). Use the given interval to choose the direction.

Step 2

Why this answer is correct

The correct answer is A. \( -\frac{3}{4} \). Moving \( \frac{5}{4} \) to the right of (-2) gives \( -2+\frac{5}{4}=-\frac{3}{4} \). Use the given interval to choose the direction.

Step 3

Exam Tip

(-2) से दाईं ओर \( \frac{5}{4} \) जाने पर \( -2+\frac{5}{4}=-\frac{3}{4} \) मिलता है। दिए गए अंतराल से सही दिशा चुनें।

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किस बिंदु की ( -2 ) से दूरी \( \frac{7}{3} \) है और वह ( -2 ) के दाईं ओर है?

Which point is at a distance \( \frac{7}{3} \) from (-2) and lies to the right of (-2)?

Explanation opens after your attempt
Correct Answer

A. \( \frac{1}{3}\)

Step 1

Concept

Moving right gives \( -2+\frac{7}{3}=\frac{1}{3}\). Add or subtract according to direction.

Step 2

Why this answer is correct

The correct answer is A. \( \frac{1}{3}\). Moving right gives \( -2+\frac{7}{3}=\frac{1}{3}\). Add or subtract according to direction.

Step 3

Exam Tip

दाईं ओर जाने पर \( -2+\frac{7}{3}=\frac{1}{3}\) मिलता है। दिशा के अनुसार जोड़ या घटाव करें।

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संख्या रेखा पर \(\frac{-7}{4}\) को (0) से किस दिशा और कितनी दूरी पर रखा जाएगा?

On the number line, in which direction and at what distance from (0) is \(\frac{-7}{4}\) placed?

Explanation opens after your attempt
Correct Answer

A. बाएँ \( \frac{7}{4} \) इकाईLeft \( \frac{7}{4} \) units

Step 1

Concept

A negative number lies to the left of (0), and its distance is its absolute value \(\frac{7}{4}\). Identify direction and distance separately.

Step 2

Why this answer is correct

The correct answer is A. बाएँ \( \frac{7}{4} \) इकाई / Left \( \frac{7}{4} \) units. A negative number lies to the left of (0), and its distance is its absolute value \(\frac{7}{4}\). Identify direction and distance separately.

Step 3

Exam Tip

ऋणात्मक संख्या (0) के बाएँ होती है और दूरी उसका निरपेक्ष मान \(\frac{7}{4}\) है। दिशा और दूरी को अलग-अलग पहचानें।

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यदि किसी बिंदु की (0) से दूरी \(\sqrt{13}\) है, तो वह संख्या रेखा पर कौन-से बिंदु हो सकते हैं?

If a point is at distance \(\sqrt{13}\) from (0), which points can it be on the number line?

Explanation opens after your attempt
Correct Answer

A. \(-\sqrt{13}\) और \(\sqrt{13}\)\(-\sqrt{13}\) and \(\sqrt{13}\)

Step 1

Concept

Points at the same distance from (0) occur on both sides, so the values are \(\pm\sqrt{13}\). In distance questions, check both directions.

Step 2

Why this answer is correct

The correct answer is A. \(-\sqrt{13}\) और \(\sqrt{13}\) / \(-\sqrt{13}\) and \(\sqrt{13}\). Points at the same distance from (0) occur on both sides, so the values are \(\pm\sqrt{13}\). In distance questions, check both directions.

Step 3

Exam Tip

(0) से समान दूरी पर दोनों ओर बिंदु होते हैं, इसलिए मान \(\pm\sqrt{13}\) होंगे। दूरी वाले प्रश्नों में दोनों दिशाएँ जाँचें।

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किस विकल्प में संख्या रेखा पर (0) से दूरी (3.5) है?

Which option has distance (3.5) from (0) on the number line?

Explanation opens after your attempt
Correct Answer

A. (-3.5) और (3.5)(-3.5) and (3.5)

Step 1

Concept

Distance from (0) is (|x|), so (|x|=3.5) gives \(x=\pm3.5\). Distance is always a positive measure.

Step 2

Why this answer is correct

The correct answer is A. (-3.5) और (3.5) / (-3.5) and (3.5). Distance from (0) is (|x|), so (|x|=3.5) gives \(x=\pm3.5\). Distance is always a positive measure.

Step 3

Exam Tip

(0) से दूरी (|x|) होती है, इसलिए (|x|=3.5) के हल \(x=\pm3.5\) हैं। दूरी हमेशा धनात्मक माप होती है।

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संख्या रेखा पर \(-\sqrt{0.81}\) की (0) से दूरी कितनी है?

What is the distance of \(-\sqrt{0.81}\) from (0) on the number line?

Explanation opens after your attempt
Correct Answer

B. (0.9)

Step 1

Concept

\(\sqrt{0.81}=0.9\), so the distance of \(-\sqrt{0.81}\) from (0) is (0.9). Distance equals magnitude.

Step 2

Why this answer is correct

The correct answer is B. (0.9). \(\sqrt{0.81}=0.9\), so the distance of \(-\sqrt{0.81}\) from (0) is (0.9). Distance equals magnitude.

Step 3

Exam Tip

\(\sqrt{0.81}=0.9\), इसलिए \(-\sqrt{0.81}\) की (0) से दूरी (0.9) है। दूरी परिमाण के बराबर होती है।

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संख्या रेखा पर \(\frac{2}{5}\) और \(\frac{7}{10}\) के बीच की दूरी कितनी है?

What is the distance between \(\frac{2}{5}\) and \(\frac{7}{10}\) on the number line?

Explanation opens after your attempt
Correct Answer

C. \(\frac{3}{10}\)

Step 1

Concept

\(\frac{2}{5}=\frac{4}{10}\), so the distance is \(\frac{7}{10}-\frac{4}{10}=\frac{3}{10}\). Use a common denominator before subtracting.

Step 2

Why this answer is correct

The correct answer is C. \(\frac{3}{10}\). \(\frac{2}{5}=\frac{4}{10}\), so the distance is \(\frac{7}{10}-\frac{4}{10}=\frac{3}{10}\). Use a common denominator before subtracting.

Step 3

Exam Tip

\(\frac{2}{5}=\frac{4}{10}\), इसलिए दूरी \(\frac{7}{10}-\frac{4}{10}=\frac{3}{10}\) है। समान हर बनाकर घटाएं।

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यदि (2) से (5) तक की दूरी को (6) बराबर भागों में बांटा जाए तो प्रत्येक भाग की लंबाई क्या होगी?

If the distance from (2) to (5) is divided into (6) equal parts, what is the length of each part?

Explanation opens after your attempt
Correct Answer

B. \(\frac{1}{2}\)

Step 1

Concept

The total distance is (5-2=3), and each part is \(\frac{3}{6}=\frac{1}{2}\). Find the total distance first.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{1}{2}\). The total distance is (5-2=3), and each part is \(\frac{3}{6}=\frac{1}{2}\). Find the total distance first.

Step 3

Exam Tip

कुल दूरी (5-2=3) है और प्रत्येक भाग \(\frac{3}{6}=\frac{1}{2}\) होगा। पहले कुल दूरी निकालें।

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संख्या रेखा पर \(-\frac{7}{3}\) की (0) से दूरी कितनी है?

What is the distance of \(-\frac{7}{3}\) from (0) on the number line?

Explanation opens after your attempt
Correct Answer

B. \(\frac{7}{3}\)

Step 1

Concept

Distance from (0) is magnitude, so \(\left|-\frac{7}{3}\right|=\frac{7}{3}\). Distance is never negative.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{7}{3}\). Distance from (0) is magnitude, so \(\left|-\frac{7}{3}\right|=\frac{7}{3}\). Distance is never negative.

Step 3

Exam Tip

(0) से दूरी परिमाण होती है इसलिए \(\left|-\frac{7}{3}\right|=\frac{7}{3}\) है। दूरी ऋणात्मक नहीं होती।

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संख्या रेखा पर \(\sqrt{25}\) और \(-\sqrt{9}\) के बीच की दूरी कितनी है?

What is the distance between \(\sqrt{25}\) and \(-\sqrt{9}\) on the number line?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

\(\sqrt{25}=5\) and \(-\sqrt{9}=-3\), so the distance is (|5-(-3)|=8). Simplify square roots first.

Step 2

Why this answer is correct

The correct answer is C. (8). \(\sqrt{25}=5\) and \(-\sqrt{9}=-3\), so the distance is (|5-(-3)|=8). Simplify square roots first.

Step 3

Exam Tip

\(\sqrt{25}=5\) और \(-\sqrt{9}=-3\), इसलिए दूरी (|5-(-3)|=8) है। पहले वर्गमूल सरल करें।

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यदि (-1) से (1) तक की दूरी को (8) बराबर भागों में बांटा जाए तो प्रत्येक भाग की लंबाई क्या होगी?

If the distance from (-1) to (1) is divided into (8) equal parts, what is the length of each part?

Explanation opens after your attempt
Correct Answer

B. \(\frac{1}{4}\)

Step 1

Concept

The total distance is (2), so each part is \(\frac{2}{8}=\frac{1}{4}\). Find the distance and divide by equal parts.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{1}{4}\). The total distance is (2), so each part is \(\frac{2}{8}=\frac{1}{4}\). Find the distance and divide by equal parts.

Step 3

Exam Tip

कुल दूरी (2) है इसलिए प्रत्येक भाग \(\frac{2}{8}=\frac{1}{4}\) होगा। दूरी निकालकर बराबर भागों से विभाजित करें।

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संख्या रेखा पर \(-\sqrt{16}\) और (2.5) के बीच की दूरी कितनी है?

What is the distance between \(-\sqrt{16}\) and (2.5) on the number line?

Explanation opens after your attempt
Correct Answer

C. (6.5)

Step 1

Concept

\(-\sqrt{16}=-4\), so the distance is (|2.5-(-4)|=6.5). Distance is always taken positive.

Step 2

Why this answer is correct

The correct answer is C. (6.5). \(-\sqrt{16}=-4\), so the distance is (|2.5-(-4)|=6.5). Distance is always taken positive.

Step 3

Exam Tip

\(-\sqrt{16}=-4\), इसलिए दूरी (|2.5-(-4)|=6.5) है। दूरी हमेशा धनात्मक लेते हैं।

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संख्या रेखा पर (x) ऐसा है कि (x) से (4) तक दूरी (1.5) है और (x<4)। (x) क्या है?

On the number line, (x) is at a distance (1.5) from (4) and (x<4). What is (x)?

Explanation opens after your attempt
Correct Answer

A. (2.5)

Step 1

Concept

Since (x<4), (x=4-1.5=2.5). In exams, read the direction condition along with distance.

Step 2

Why this answer is correct

The correct answer is A. (2.5). Since (x<4), (x=4-1.5=2.5). In exams, read the direction condition along with distance.

Step 3

Exam Tip

क्योंकि (x<4), इसलिए (x=4-1.5=2.5) होगा। परीक्षा में दूरी के साथ दिशा की शर्त भी पढ़ें।

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संख्या रेखा पर (A=1.2) से (B=3.75) तक दूरी कितनी है?

What is the distance from (A=1.2) to (B=3.75) on the number line?

Explanation opens after your attempt
Correct Answer

C. (2.55) इकाई(2.55) units

Step 1

Concept

The distance is (3.75-1.2=2.55) units. In exams, align decimal places correctly while subtracting.

Step 2

Why this answer is correct

The correct answer is C. (2.55) इकाई / (2.55) units. The distance is (3.75-1.2=2.55) units. In exams, align decimal places correctly while subtracting.

Step 3

Exam Tip

दूरी (3.75-1.2=2.55) इकाई है। परीक्षा में दशमलव स्थानों को सही मिलाकर घटाएं।

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संख्या रेखा पर \(M=-\frac{4}{5}\) और \(N=\frac{1}{10}\) के बीच दूरी कितनी है?

What is the distance between \(M=-\frac{4}{5}\) and \(N=\frac{1}{10}\) on the number line?

Explanation opens after your attempt
Correct Answer

B. \(\frac{9}{10}\) इकाई\(\frac{9}{10}\) unit

Step 1

Concept

The distance is (\frac{1}{10}-\left\(-\frac{4}{5}\right\)=\frac{9}{10}) unit. In exams, subtracting a negative fraction becomes addition.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{9}{10}\) इकाई / \(\frac{9}{10}\) unit. The distance is (\frac{1}{10}-\left\(-\frac{4}{5}\right\)=\frac{9}{10}) unit. In exams, subtracting a negative fraction becomes addition.

Step 3

Exam Tip

दूरी (\frac{1}{10}-\left\(-\frac{4}{5}\right\)=\frac{9}{10}) इकाई है। परीक्षा में ऋणात्मक भिन्न जोड़ में बदल जाती है।

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यदि संख्या रेखा पर \(P=\frac{2}{3}\) और \(Q=\frac{5}{6}\), तो (P) से (Q) तक दूरी कितनी है?

If \(P=\frac{2}{3}\) and \(Q=\frac{5}{6}\) on the number line, what is the distance from (P) to (Q)?

Explanation opens after your attempt
Correct Answer

A. \(\frac{1}{6}\) इकाई\(\frac{1}{6}\) unit

Step 1

Concept

The distance is \(\frac{5}{6}-\frac{2}{3}=\frac{1}{6}\) unit. In exams, make denominators equal before subtracting.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{1}{6}\) इकाई / \(\frac{1}{6}\) unit. The distance is \(\frac{5}{6}-\frac{2}{3}=\frac{1}{6}\) unit. In exams, make denominators equal before subtracting.

Step 3

Exam Tip

दूरी \(\frac{5}{6}-\frac{2}{3}=\frac{1}{6}\) इकाई है। परीक्षा में हर समान करके घटाएं।

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संख्या रेखा पर (-2.75) और (1.25) के बीच की दूरी कितनी है?

What is the distance between (-2.75) and (1.25) on the number line?

Explanation opens after your attempt
Correct Answer

B. (4) इकाई(4) units

Step 1

Concept

The distance is (1.25-\left\(-2.75\right\)=4) units. In exams, do not miss signs while subtracting negative decimals.

Step 2

Why this answer is correct

The correct answer is B. (4) इकाई / (4) units. The distance is (1.25-\left\(-2.75\right\)=4) units. In exams, do not miss signs while subtracting negative decimals.

Step 3

Exam Tip

दूरी (1.25-\left\(-2.75\right\)=4) इकाई है। परीक्षा में ऋणात्मक दशमलव घटाते समय चिह्न न भूलें।

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संख्या रेखा पर \(A=-\frac{3}{2}\) और \(B=\frac{5}{2}\) के बीच दूरी कितनी है?

What is the distance between \(A=-\frac{3}{2}\) and \(B=\frac{5}{2}\) on the number line?

Explanation opens after your attempt
Correct Answer

C. (4) इकाई(4) units

Step 1

Concept

The distance is (\frac{5}{2}-\left\(-\frac{3}{2}\right\)=4) units. In exams, always take distance as positive.

Step 2

Why this answer is correct

The correct answer is C. (4) इकाई / (4) units. The distance is (\frac{5}{2}-\left\(-\frac{3}{2}\right\)=4) units. In exams, always take distance as positive.

Step 3

Exam Tip

दूरी (\frac{5}{2}-\left\(-\frac{3}{2}\right\)=4) इकाई है। परीक्षा में दूरी हमेशा धनात्मक लें।

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संख्या रेखा पर (A=-0.5), (B=0), और (C=0.75) हों तो सबसे बड़ी दूरी किस युग्म के बीच है?

If (A=-0.5), (B=0), and (C=0.75) on the number line, which pair has the greatest distance?

Explanation opens after your attempt
Correct Answer

C. (A) और (C)(A) and (C)

Step 1

Concept

(AC=|0.75-(-0.5)|=1.25), which is the greatest distance. The farthest points are often the endpoints.

Step 2

Why this answer is correct

The correct answer is C. (A) और (C) / (A) and (C). (AC=|0.75-(-0.5)|=1.25), which is the greatest distance. The farthest points are often the endpoints.

Step 3

Exam Tip

(AC=|0.75-(-0.5)|=1.25), जो सबसे बड़ी दूरी है। सबसे दूर बिंदु अक्सर दोनों सिरों पर होते हैं।

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यदि संख्या रेखा पर (0.2) से (0.8) तक की दूरी को (3) बराबर भागों में बांटा जाए तो प्रत्येक भाग कितना होगा?

If the distance from (0.2) to (0.8) on the number line is divided into (3) equal parts, how long is each part?

Explanation opens after your attempt
Correct Answer

B. (0.2)

Step 1

Concept

The total distance is (0.8-0.2=0.6) and \(\frac{0.6}{3}=0.2\). Divide total distance by the number of parts for equal sections.

Step 2

Why this answer is correct

The correct answer is B. (0.2). The total distance is (0.8-0.2=0.6) and \(\frac{0.6}{3}=0.2\). Divide total distance by the number of parts for equal sections.

Step 3

Exam Tip

कुल दूरी (0.8-0.2=0.6) है और \(\frac{0.6}{3}=0.2\) है। बराबर भाग के लिए कुल दूरी को भागों से विभाजित करें।

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संख्या रेखा पर (-1.2) से (0.3) तक की दूरी कितनी है?

What is the distance from (-1.2) to (0.3) on the number line?

Explanation opens after your attempt
Correct Answer

C. (1.5)

Step 1

Concept

The distance is (|0.3-(-1.2)|=1.5). From negative to positive, the two distances add up.

Step 2

Why this answer is correct

The correct answer is C. (1.5). The distance is (|0.3-(-1.2)|=1.5). From negative to positive, the two distances add up.

Step 3

Exam Tip

दूरी (=|0.3-(-1.2)|=1.5) है। ऋणात्मक से धनात्मक तक जाते समय दोनों दूरियां जुड़ती हैं।

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कौन सा विकल्प संख्या रेखा पर (0) से समान दूरी पर स्थित दो बिंदु दिखाता है?

Which option shows two points at equal distance from (0) on the number line?

Explanation opens after your attempt
Correct Answer

A. (2.5) और (-2.5)(2.5) and (-2.5)

Step 1

Concept

Both (2.5) and (-2.5) are (2.5) units from (0). Opposite numbers are equally distant from the origin.

Step 2

Why this answer is correct

The correct answer is A. (2.5) और (-2.5) / (2.5) and (-2.5). Both (2.5) and (-2.5) are (2.5) units from (0). Opposite numbers are equally distant from the origin.

Step 3

Exam Tip

(2.5) और (-2.5) दोनों की (0) से दूरी (2.5) है। विपरीत संख्याएं मूल बिंदु से बराबर दूरी पर होती हैं।

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संख्या रेखा पर \(-\sqrt{9}\) और \(\sqrt{9}\) के बीच की दूरी कितनी है?

What is the distance between \(-\sqrt{9}\) and \(\sqrt{9}\) on the number line?

Explanation opens after your attempt
Correct Answer

B. (6)

Step 1

Concept

\(-\sqrt{9}=-3\) and \(\sqrt{9}=3\), so the distance is (6). The distance between opposite points is the sum of their magnitudes.

Step 2

Why this answer is correct

The correct answer is B. (6). \(-\sqrt{9}=-3\) and \(\sqrt{9}=3\), so the distance is (6). The distance between opposite points is the sum of their magnitudes.

Step 3

Exam Tip

\(-\sqrt{9}=-3\) और \(\sqrt{9}=3\), इसलिए दूरी (6) है। विपरीत बिंदुओं की दूरी उनके परिमाणों का योग होती है।

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संख्या रेखा पर (A=-3) और (B=2) हों तो (A) से (B) तक की दूरी क्या है?

If (A=-3) and (B=2) on the number line, what is the distance from (A) to (B)?

Explanation opens after your attempt
Correct Answer

C. (5)

Step 1

Concept

The distance is (|2-(-3)|=5). Distance on the number line is always positive.

Step 2

Why this answer is correct

The correct answer is C. (5). The distance is (|2-(-3)|=5). Distance on the number line is always positive.

Step 3

Exam Tip

दूरी (=|2-(-3)|=5) है। संख्या रेखा पर दूरी हमेशा धनात्मक होती है।

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यदि संख्या रेखा पर (C=2.5) और (D=4) हैं, तो दोनों के बीच दूरी कितनी है?

If (C=2.5) and (D=4) on the number line, what is the distance between them?

Explanation opens after your attempt
Correct Answer

B. (1.5) इकाई(1.5) units

Step 1

Concept

The distance is (4-2.5=1.5) units. In exams, perform decimal subtraction clearly.

Step 2

Why this answer is correct

The correct answer is B. (1.5) इकाई / (1.5) units. The distance is (4-2.5=1.5) units. In exams, perform decimal subtraction clearly.

Step 3

Exam Tip

दूरी (4-2.5=1.5) इकाई है। परीक्षा में दशमलव घटाव साफ-साफ करें।

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