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100 results found for "D greater than zero" in Class 10.

समान्तर श्रेणी \(128,119,110,\ldots\) में (30) से बड़ा अंतिम पद कौन-सा है?

In the AP \(128,119,110,\ldots\), which is the last term greater than (30)?

Explanation opens after your attempt
Correct Answer

C. (38)

Step 1

Concept

(d=-9) and the terms go \(128,119,110,\ldots,38,29\). The last term greater than (30) is (38).

Step 2

Why this answer is correct

The correct answer is C. (38). (d=-9) and the terms go \(128,119,110,\ldots,38,29\). The last term greater than (30) is (38).

Step 3

Exam Tip

(d=-9) है और पद \(128,119,110,\ldots,38,29\) आते हैं। (30) से बड़ा अंतिम पद (38) है।

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समान्तर श्रेणी \(90,83,76,\ldots\) में (20) से बड़ा अंतिम पद कौन-सा है?

In the AP \(90,83,76,\ldots\), which is the last term greater than (20)?

Explanation opens after your attempt
Correct Answer

D. (27)

Step 1

Concept

(d=-7) and the terms go \(90,83,76,\ldots,27,20\). The last term greater than (20) is (27).

Step 2

Why this answer is correct

The correct answer is D. (27). (d=-7) and the terms go \(90,83,76,\ldots,27,20\). The last term greater than (20) is (27).

Step 3

Exam Tip

(d=-7) है और पद \(90,83,76,\ldots,27,20\) आते हैं। (20) से बड़ा अंतिम पद (27) है।

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समान्तर श्रेणी \(64,58,52,\ldots\) में (10) से बड़ा अंतिम पद कौन-सा है?

In the AP \(64,58,52,\ldots\), which is the last term greater than (10)?

Explanation opens after your attempt
Correct Answer

C. (16)

Step 1

Concept

The terms \(64,58,52,\ldots\) have (d=-6). The last term greater than (10) is (16) because the next term is (10).

Step 2

Why this answer is correct

The correct answer is C. (16). The terms \(64,58,52,\ldots\) have (d=-6). The last term greater than (10) is (16) because the next term is (10).

Step 3

Exam Tip

पद \(64,58,52,\ldots\) में (d=-6) है। (10) से बड़ा अंतिम पद (16) है क्योंकि अगला पद (10) है।

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कौन सा बहुपद (x=0) को शून्य बनाता है लेकिन शून्य बहुपद नहीं है?

Which polynomial makes (x=0) a zero but is not the zero polynomial?

Explanation opens after your attempt
Correct Answer

B. \(4x^3-7x\)

Step 1

Concept

Substituting (x=0) in \(4x^3-7x\) gives (0), and it is not the zero polynomial. For (x=0), the constant term must be (0).

Step 2

Why this answer is correct

The correct answer is B. \(4x^3-7x\). Substituting (x=0) in \(4x^3-7x\) gives (0), and it is not the zero polynomial. For (x=0), the constant term must be (0).

Step 3

Exam Tip

\(4x^3-7x\) में (x=0) रखने पर (0) मिलता है और यह शून्य बहुपद नहीं है। (x=0) के लिए अचर पद (0) होना चाहिए।

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कौन सा मान \( \frac{23}{6} \) से बड़ा और \( \sqrt{15} \) से छोटा है?

Which value is greater than \( \frac{23}{6} \) and less than \( \sqrt{15} \)?

Explanation opens after your attempt
Correct Answer

C. (3.86)

Step 1

Concept

\( \frac{23}{6}\approx3.833 \) and \( \sqrt{15}\approx3.873 \). Therefore (3.86) lies between them.

Step 2

Why this answer is correct

The correct answer is C. (3.86). \( \frac{23}{6}\approx3.833 \) and \( \sqrt{15}\approx3.873 \). Therefore (3.86) lies between them.

Step 3

Exam Tip

\( \frac{23}{6}\approx3.833 \) और \( \sqrt{15}\approx3.873 \) है। इसलिए (3.86) इनके बीच है।

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कौन सा मान \( \sqrt{15}+\frac{1}{8} \) से बड़ा और (4) से छोटा है?

Which value is greater than \( \sqrt{15}+\frac{1}{8} \) and less than (4)?

Explanation opens after your attempt
Correct Answer

A. (3.95)

Step 1

Concept

\( \sqrt{15}+\frac{1}{8}\approx3.998 \), so (3.95) is not greater than it. In this case no listed value satisfies the condition.

Step 2

Why this answer is correct

The correct answer is A. (3.95). \( \sqrt{15}+\frac{1}{8}\approx3.998 \), so (3.95) is not greater than it. In this case no listed value satisfies the condition.

Step 3

Exam Tip

\( \sqrt{15}+\frac{1}{8}\approx3.998 \), इसलिए (3.95) इससे बड़ा नहीं है। ऐसी स्थिति में कोई दिया विकल्प शर्त पूरी नहीं करता।

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कौन सा मान \( \frac{17}{5} \) से बड़ा और \( \sqrt{12} \) से छोटा है?

Which value is greater than \( \frac{17}{5} \) and less than \( \sqrt{12} \)?

Explanation opens after your attempt
Correct Answer

C. (3.45)

Step 1

Concept

\( \frac{17}{5}=3.4 \) and \( \sqrt{12}\approx3.464 \). Therefore (3.45) lies between them.

Step 2

Why this answer is correct

The correct answer is C. (3.45). \( \frac{17}{5}=3.4 \) and \( \sqrt{12}\approx3.464 \). Therefore (3.45) lies between them.

Step 3

Exam Tip

\( \frac{17}{5}=3.4 \) और \( \sqrt{12}\approx3.464 \) है। इसलिए (3.45) इनके बीच है।

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कौन सा मान \( \sqrt{8}+\frac{1}{10} \) से बड़ा और (3) से छोटा है?

Which value is greater than \( \sqrt{8}+\frac{1}{10} \) and less than (3)?

Explanation opens after your attempt
Correct Answer

A. (2.90)

Step 1

Concept

\( \sqrt{8}+\frac{1}{10}\approx2.928 \). Therefore (2.90) does not satisfy it and no given value satisfies the condition.

Step 2

Why this answer is correct

The correct answer is A. (2.90). \( \sqrt{8}+\frac{1}{10}\approx2.928 \). Therefore (2.90) does not satisfy it and no given value satisfies the condition.

Step 3

Exam Tip

\( \sqrt{8}+\frac{1}{10}\approx2.928 \) है। इसलिए (2.90) नहीं बल्कि कोई भी दिया मान शर्त पूरी नहीं करता।

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कौन सा मान \( -\sqrt{13} \) से छोटा और ( -3.7 ) से बड़ा है?

Which value is less than \( -\sqrt{13} \) and greater than (-3.7)?

Explanation opens after your attempt
Correct Answer

C. ( -3.65 )

Step 1

Concept

\( -\sqrt{13}\approx-3.606 \), so (-3.65) is less than it and greater than (-3.7). Be careful with direction for negative values.

Step 2

Why this answer is correct

The correct answer is C. ( -3.65 ). \( -\sqrt{13}\approx-3.606 \), so (-3.65) is less than it and greater than (-3.7). Be careful with direction for negative values.

Step 3

Exam Tip

\( -\sqrt{13}\approx-3.606 \), इसलिए (-3.65) इससे छोटा और (-3.7) से बड़ा है। ऋणात्मक मानों में दिशा सावधानी से देखें।

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कौन सा मान \( \sqrt{11} \) से बड़ा और \( \frac{10}{3} \) से छोटा है?

Which value is greater than \( \sqrt{11} \) and less than \( \frac{10}{3} \)?

Explanation opens after your attempt
Correct Answer

C. (3.33)

Step 1

Concept

\( \sqrt{11}\approx3.316 \) and \( \frac{10}{3}\approx3.333 \), so (3.33) lies between them. Compare very close values accurately.

Step 2

Why this answer is correct

The correct answer is C. (3.33). \( \sqrt{11}\approx3.316 \) and \( \frac{10}{3}\approx3.333 \), so (3.33) lies between them. Compare very close values accurately.

Step 3

Exam Tip

\( \sqrt{11}\approx3.316 \) और \( \frac{10}{3}\approx3.333 \), इसलिए (3.33) बीच में है। बहुत पास मानों में सटीक तुलना करें।

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कौन सा मान \( \frac{9}{4} \) से बड़ा और \( \sqrt{6} \) से छोटा है?

Which value is greater than \( \frac{9}{4} \) and less than \( \sqrt{6} \)?

Explanation opens after your attempt
Correct Answer

A. (2.4)

Step 1

Concept

\( \frac{9}{4}=2.25 \) and \( \sqrt{6}\approx2.449 \). Therefore (2.4) lies between them.

Step 2

Why this answer is correct

The correct answer is A. (2.4). \( \frac{9}{4}=2.25 \) and \( \sqrt{6}\approx2.449 \). Therefore (2.4) lies between them.

Step 3

Exam Tip

\( \frac{9}{4}=2.25 \) और \( \sqrt{6}\approx2.449 \) है। इसलिए (2.4) इनके बीच है।

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कौन सा मान \( \sqrt{3}+\frac{1}{4} \) से छोटा और (2) से बड़ा है?

Which value is greater than \( \sqrt{3}+\frac{1}{4} \) and less than (2)?

Explanation opens after your attempt
Correct Answer

A. (1.99)

Step 1

Concept

\( \sqrt{3}+\frac{1}{4}\approx1.982 \). Therefore (1.99) is greater than it and less than (2).

Step 2

Why this answer is correct

The correct answer is A. (1.99). \( \sqrt{3}+\frac{1}{4}\approx1.982 \). Therefore (1.99) is greater than it and less than (2).

Step 3

Exam Tip

\( \sqrt{3}+\frac{1}{4}\approx1.982 \) है। इसलिए (1.99) इससे बड़ा और (2) से छोटा है।

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कौन सा मान \( \sqrt{6} \) से बड़ा और \( \sqrt{7} \) से छोटा है?

Which value is greater than \( \sqrt{6} \) and less than \( \sqrt{7} \)?

Explanation opens after your attempt
Correct Answer

A. (2.5)

Step 1

Concept

\( \sqrt{6}\approx2.449\) and \( \sqrt{7}\approx2.646\), so (2.5) lies between them. Estimate carefully for close square roots.

Step 2

Why this answer is correct

The correct answer is A. (2.5). \( \sqrt{6}\approx2.449\) and \( \sqrt{7}\approx2.646\), so (2.5) lies between them. Estimate carefully for close square roots.

Step 3

Exam Tip

\( \sqrt{6}\approx2.449\) और \( \sqrt{7}\approx2.646\), इसलिए (2.5) बीच में है। नजदीकी मूलों में सावधानी से अनुमान लगाएँ।

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संख्या रेखा पर कौन सी संख्या \(\sqrt{14}\) से छोटी लेकिन (3) से बड़ी है?

Which number is less than \(\sqrt{14}\) but greater than (3) on the number line?

Explanation opens after your attempt
Correct Answer

B. (3.5)

Step 1

Concept

\(\sqrt{14}\) is about (3.74), so (3.5) is greater than (3) and less than \(\sqrt{14}\). In exams, make a rough estimate of the square root.

Step 2

Why this answer is correct

The correct answer is B. (3.5). \(\sqrt{14}\) is about (3.74), so (3.5) is greater than (3) and less than \(\sqrt{14}\). In exams, make a rough estimate of the square root.

Step 3

Exam Tip

\(\sqrt{14}\) लगभग (3.74) है, इसलिए (3.5) (3) से बड़ा और \(\sqrt{14}\) से छोटा है। परीक्षा में वर्गमूल का मोटा अनुमान लगाएं।

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यदि \(\sqrt{a}\) संख्या रेखा पर (5) से थोड़ा अधिक और (6) से कम है तो (a) किस सीमा में होगा?

If \(\sqrt{a}\) is slightly greater than (5) and less than (6) on the number line, in which range will (a) lie?

Explanation opens after your attempt
Correct Answer

C. (25<a<36)

Step 1

Concept

If \(5<\sqrt{a}<6\), then (25<a<36). Square the root bounds to get the range of (a).

Step 2

Why this answer is correct

The correct answer is C. (25<a<36). If \(5<\sqrt{a}<6\), then (25<a<36). Square the root bounds to get the range of (a).

Step 3

Exam Tip

\(5<\sqrt{a}<6\) होने पर (25<a<36) होगा। वर्गमूल की सीमा को वर्ग करके (a) की सीमा मिलती है।

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किस विकल्प में दी गई संख्या \(2\sqrt{3}\) से छोटी और \(\sqrt{11}\) से बड़ी है?

Which given number is smaller than \(2\sqrt{3}\) and greater than \(\sqrt{11}\)?

Explanation opens after your attempt
Correct Answer

B. (3.4)

Step 1

Concept

\(\sqrt{11}\) is about (3.316), and \(2\sqrt{3}\) is about (3.464).

Step 2

Why this answer is correct

(3.4) lies between them.

Step 3

Exam Tip

For close values, estimating to two decimal places is helpful. चरण 1: \(\sqrt{11}\) लगभग (3.316) है और \(2\sqrt{3}\) लगभग (3.464) है। चरण 2: (3.4) इन दोनों के बीच है। चरण 3: निकट मानों की तुलना में दो दशमलव तक अनुमान काफी मदद करता है।

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यदि ग्राफ (x)-अक्ष को ((-12,0)) और ((-4,0)) पर काटता है तो बड़ा शून्यक कौन सा है?

If a graph cuts the (x)-axis at ((-12,0)) and ((-4,0)), which zero is greater?

Explanation opens after your attempt
Correct Answer

B. (-4)

Step 1

Concept

The number (-4) lies to the right of (-12) on the number line. Tip: the less negative number is greater.

Step 2

Why this answer is correct

The correct answer is B. (-4). The number (-4) lies to the right of (-12) on the number line. Tip: the less negative number is greater.

Step 3

Exam Tip

(-4) संख्या रेखा पर (-12) से दाईं ओर है। टिप: कम ऋणात्मक संख्या बड़ी होती है।

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समान्तर श्रेणी \(33,48,63,\ldots\) में (1000) से बड़ा पहला पद कौन-सा है?

What is the first term greater than (1000) in the AP \(33,48,63,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (1008)

Step 1

Concept

The terms are (33+15(n-1)). The first term greater than (1000) is (1008) because the previous term is (993).

Step 2

Why this answer is correct

The correct answer is B. (1008). The terms are (33+15(n-1)). The first term greater than (1000) is (1008) because the previous term is (993).

Step 3

Exam Tip

पद (33+15(n-1)) के रूप में हैं। (1000) से बड़ा पहला पद (1008) है क्योंकि पिछला पद (993) है।

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समान्तर श्रेणी \(27,40,53,\ldots\) में (850) से बड़ा पहला पद कौन-सा है?

What is the first term greater than (850) in the AP \(27,40,53,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (859)

Step 1

Concept

The terms are of the form (27+13(n-1)). The first term greater than (850) is (859) because the previous term is (846).

Step 2

Why this answer is correct

The correct answer is B. (859). The terms are of the form (27+13(n-1)). The first term greater than (850) is (859) because the previous term is (846).

Step 3

Exam Tip

पद (27+13(n-1)) के रूप में हैं। (850) से बड़ा पहला पद (859) है क्योंकि पिछला पद (846) है।

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समान्तर श्रेणी \(19,30,41,\ldots\) में (700) से बड़ा पहला पद कौन-सा है?

What is the first term greater than (700) in the AP \(19,30,41,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (701)

Step 1

Concept

The terms are of the form (19+11(n-1)). The first term greater than (700) is (701) because the previous term is (690).

Step 2

Why this answer is correct

The correct answer is B. (701). The terms are of the form (19+11(n-1)). The first term greater than (700) is (701) because the previous term is (690).

Step 3

Exam Tip

पद (19+11(n-1)) के रूप में हैं। (700) से बड़ा पहला पद (701) है क्योंकि पिछला पद (690) है।

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समान्तर श्रेणी \(17,27,37,\ldots\) में (500) से बड़ा पहला पद कौन-सा है?

What is the first term greater than (500) in the AP \(17,27,37,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (507)

Step 1

Concept

(a_n=17+10(n-1)). The first term greater than (500) is (507) because the previous term is (497).

Step 2

Why this answer is correct

The correct answer is B. (507). (a_n=17+10(n-1)). The first term greater than (500) is (507) because the previous term is (497).

Step 3

Exam Tip

(a_n=17+10(n-1))। (500) से बड़ा पहला पद (507) है क्योंकि पिछला पद (497) है।

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समान्तर श्रेणी \(11,19,27,\ldots\) में (300) से बड़ा पहला पद कौन-सा है?

What is the first term greater than (300) in the AP \(11,19,27,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (307)

Step 1

Concept

(a_n=11+8(n-1)). The first term greater than (300) is (307) because the previous term is (299).

Step 2

Why this answer is correct

The correct answer is B. (307). (a_n=11+8(n-1)). The first term greater than (300) is (307) because the previous term is (299).

Step 3

Exam Tip

(a_n=11+8(n-1))। (300) से बड़ा पहला पद (307) है क्योंकि पिछला पद (299) है।

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दो संख्याओं का योग (41) है और बड़ी संख्या छोटी संख्या से (9) अधिक है। बड़ी संख्या क्या है?

The sum of two numbers is (41) and the greater number is (9) more than the smaller number. What is the greater number?

Explanation opens after your attempt
Correct Answer

C. (25)

Step 1

Concept

Let the numbers be (x) and (y), so (x+y=41) and (x-y=9). Adding gives (2x=50), so the greater number is (25).

Step 2

Why this answer is correct

The correct answer is C. (25). Let the numbers be (x) and (y), so (x+y=41) and (x-y=9). Adding gives (2x=50), so the greater number is (25).

Step 3

Exam Tip

यदि संख्याएं (x) और (y) हों तो (x+y=41) और (x-y=9)। जोड़ने पर (2x=50), इसलिए बड़ी संख्या (25) है।

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किसी परवलय का एक शून्यक (-10) है और दूसरा शून्यक पहले से (18) अधिक है। सममिति अक्ष क्या होगा?

One zero of a parabola is (-10), and the other zero is (18) more than the first. What is the axis of symmetry?

Explanation opens after your attempt
Correct Answer

A. (x=-1)

Step 1

Concept

The other zero is (8), and the average is \(\frac{-10+8}{2}=-1\). Tip: the axis of symmetry is the average of two zeroes.

Step 2

Why this answer is correct

The correct answer is A. (x=-1). The other zero is (8), and the average is \(\frac{-10+8}{2}=-1\). Tip: the axis of symmetry is the average of two zeroes.

Step 3

Exam Tip

दूसरा शून्यक (8) है और औसत \(\frac{-10+8}{2}=-1\) है। टिप: सममिति अक्ष दो शून्यकों का औसत है।

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किसी परवलय का एक शून्यक (-8) है और दूसरा शून्यक पहले से (12) अधिक है। सममिति अक्ष क्या होगा?

One zero of a parabola is (-8), and the other zero is (12) more than the first. What is the axis of symmetry?

Explanation opens after your attempt
Correct Answer

A. (x=-2)

Step 1

Concept

The other zero is (4), and the average is \(\frac{-8+4}{2}=-2\). Tip: the axis of symmetry is the average of two zeroes.

Step 2

Why this answer is correct

The correct answer is A. (x=-2). The other zero is (4), and the average is \(\frac{-8+4}{2}=-2\). Tip: the axis of symmetry is the average of two zeroes.

Step 3

Exam Tip

दूसरा शून्यक (4) है और औसत \(\frac{-8+4}{2}=-2\) है। टिप: सममिति अक्ष दो शून्यकों का औसत है।

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यदि (p(x)=2x-2+mx+18) का एक शून्यक (3) है, तो दूसरा शून्यक क्या है?

If one zero of (p(x)=2x-2+mx+18) is (3), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

The product is \(\frac{18}{2}=9\). Since one zero is (3), the other is (3).

Step 2

Why this answer is correct

The correct answer is A. (3). The product is \(\frac{18}{2}=9\). Since one zero is (3), the other is (3).

Step 3

Exam Tip

गुणनफल \(\frac{18}{2}=9\) है। एक शून्यक (3) है, इसलिए दूसरा (3) होगा।

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यदि (p(x)=x-2+3x-18) का एक शून्यक (3) है, तो दूसरा शून्यक क्या है?

If one zero of (p(x)=x-2+3x-18) is (3), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. -(6)

Step 1

Concept

The product of zeroes is (-18). Since one zero is (3), the other is \(-18\div3=-6\).

Step 2

Why this answer is correct

The correct answer is A. -(6). The product of zeroes is (-18). Since one zero is (3), the other is \(-18\div3=-6\).

Step 3

Exam Tip

शून्यकों का गुणनफल (-18) है। एक शून्यक (3) है, इसलिए दूसरा \(-18\div3=-6\) है।

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यदि (p(x)=x-2-10x+r) का एक शून्यक (4) है, तो दूसरा शून्यक क्या है?

If one zero of (p(x)=x-2-10x+r) is (4), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

The sum of zeroes is (10). Since one zero is (4), the other is (10-4=6).

Step 2

Why this answer is correct

The correct answer is A. (6). The sum of zeroes is (10). Since one zero is (4), the other is (10-4=6).

Step 3

Exam Tip

शून्यकों का योग (10) है। एक शून्यक (4) है, इसलिए दूसरा (10-4=6) है।

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यदि (p(x)=x-2-2x-2) का एक शून्यक \(1+\sqrt{3}\) है, तो दूसरा शून्यक क्या है?

If one zero of (p(x)=x-2-2x-2) is \(1+\sqrt{3}\), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. \(1-\sqrt{3}\)

Step 1

Concept

The sum of zeroes is (2), so the other zero is (2-\(1+\sqrt{3}\)=1-\sqrt{3}). With rational coefficients, the conjugate also appears.

Step 2

Why this answer is correct

The correct answer is A. \(1-\sqrt{3}\). The sum of zeroes is (2), so the other zero is (2-\(1+\sqrt{3}\)=1-\sqrt{3}). With rational coefficients, the conjugate also appears.

Step 3

Exam Tip

शून्यकों का योग (2) है, इसलिए दूसरा शून्यक (2-\(1+\sqrt{3}\)=1-\sqrt{3}) है। परिमेय गुणांकों में संयुग्मी भी मिलता है।

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यदि (p(x)=x-2-13x+k) का एक शून्यक (6) है, तो दूसरा शून्यक और (x)-अक्ष कटान क्या होंगे?

If (p(x)=x-2-13x+k) has one zero (6), what will be the other zero and the (x)-axis intersections?

Explanation opens after your attempt
Correct Answer

A. दूसरा (7), कटान ((6,0)), ((7,0))Other (7), intersections ((6,0)), ((7,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (13), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (7), कटान ((6,0)), ((7,0)) / Other (7), intersections ((6,0)), ((7,0)). In the quadratic, the sum of zeroes is (13), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (13) है, इसलिए दूसरा शून्यक (7) है। टिप: शून्यक को ((x,0)) में बदलें।

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यदि परवलय का सममिति अक्ष (x=5) है और एक शून्यक (-1) है, तो दूसरा शून्यक क्या होगा?

If the axis of symmetry of a parabola is (x=5) and one zero is (-1), what will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (11)

Step 1

Concept

The average of the two zeroes is (5), so the other zero is (11). Tip: the axis of symmetry passes through the midpoint of zeroes.

Step 2

Why this answer is correct

The correct answer is A. (11). The average of the two zeroes is (5), so the other zero is (11). Tip: the axis of symmetry passes through the midpoint of zeroes.

Step 3

Exam Tip

दो शून्यकों का औसत (5) है इसलिए दूसरा शून्यक (11) होगा। टिप: सममिति अक्ष शून्यकों के मध्य से गुजरता है।

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यदि (p(x)=x-2-11x+k) का एक शून्यक (4) है, तो दूसरा शून्यक और (x)-अक्ष कटान क्या होंगे?

If (p(x)=x-2-11x+k) has one zero (4), what will be the other zero and the (x)-axis intersections?

Explanation opens after your attempt
Correct Answer

A. दूसरा (7), कटान ((4,0)), ((7,0))Other (7), intersections ((4,0)), ((7,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (11), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (7), कटान ((4,0)), ((7,0)) / Other (7), intersections ((4,0)), ((7,0)). In the quadratic, the sum of zeroes is (11), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (11) है, इसलिए दूसरा शून्यक (7) है। टिप: शून्यक को ((x,0)) में बदलें।

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यदि परवलय का सममिति अक्ष (x=-2) है और एक शून्यक (5) है, तो दूसरा शून्यक क्या होगा?

If the axis of symmetry of a parabola is (x=-2) and one zero is (5), what will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (-9)

Step 1

Concept

The average of the two zeroes is (-2), so the other zero is (-9). Tip: connect the axis of symmetry with the midpoint of zeroes.

Step 2

Why this answer is correct

The correct answer is A. (-9). The average of the two zeroes is (-2), so the other zero is (-9). Tip: connect the axis of symmetry with the midpoint of zeroes.

Step 3

Exam Tip

दो शून्यकों का औसत (-2) है, इसलिए दूसरा शून्यक (-9) होगा। टिप: सममिति अक्ष को शून्यकों के मध्य से जोड़ें।

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यदि (p(x)=x-2-9x+k) का एक शून्यक (4) है तो दूसरा शून्यक और कटान बिंदु क्या होंगे?

If (p(x)=x-2-9x+k) has one zero (4), what will be the other zero and intersection points?

Explanation opens after your attempt
Correct Answer

A. दूसरा (5), कटान ((4,0)), ((5,0))Other (5), intersections ((4,0)), ((5,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (9), so the other zero is (5). Tip: quickly convert a zero to ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (5), कटान ((4,0)), ((5,0)) / Other (5), intersections ((4,0)), ((5,0)). In the quadratic, the sum of zeroes is (9), so the other zero is (5). Tip: quickly convert a zero to ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (9) है इसलिए दूसरा शून्यक (5) है। टिप: शून्यक को तुरंत ((x,0)) में बदलें।

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किसी परवलय का एक शून्यक (11) है और सममिति अक्ष (x=3) है। दूसरा शून्यक क्या होगा?

A parabola has one zero (11) and axis of symmetry (x=3). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (-5)

Step 1

Concept

The average of the two zeroes is (3), so the other zero is (-5). Tip: set \(\frac{a+b}{2}\) equal to the axis of symmetry.

Step 2

Why this answer is correct

The correct answer is A. (-5). The average of the two zeroes is (3), so the other zero is (-5). Tip: set \(\frac{a+b}{2}\) equal to the axis of symmetry.

Step 3

Exam Tip

दो शून्यकों का औसत (3) है इसलिए दूसरा शून्यक (-5) होगा। टिप: \(\frac{a+b}{2}\) को सममिति अक्ष के बराबर रखें।

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किसी परवलय का सममिति अक्ष (x=4) है और एक शून्यक (-2) है। दूसरा शून्यक क्या होगा?

The axis of symmetry of a parabola is (x=4) and one zero is (-2). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (10)

Step 1

Concept

The average of the two zeroes is (4), so the other zero is (10). Tip: connect the axis of symmetry with the midpoint of zeroes.

Step 2

Why this answer is correct

The correct answer is A. (10). The average of the two zeroes is (4), so the other zero is (10). Tip: connect the axis of symmetry with the midpoint of zeroes.

Step 3

Exam Tip

दोनों शून्यकों का औसत (4) है इसलिए दूसरा शून्यक (10) होगा। टिप: सममिति अक्ष को शून्यकों के मध्य मान से जोड़ें।

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यदि (p(x)=x-2-7x+k) का एक शून्यक (3) है, तो दूसरा शून्यक और कटान बिंदु क्या होंगे?

If (p(x)=x-2-7x+k) has one zero (3), what will be the other zero and intersection points?

Explanation opens after your attempt
Correct Answer

A. दूसरा (4), कटान ((3,0)), ((4,0))Other (4), intersections ((3,0)), ((4,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (7), so the other zero is (4). Tip: quickly convert a zero to ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (4), कटान ((3,0)), ((4,0)) / Other (4), intersections ((3,0)), ((4,0)). In the quadratic, the sum of zeroes is (7), so the other zero is (4). Tip: quickly convert a zero to ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (7) है, इसलिए दूसरा शून्यक (4) है। टिप: शून्यक को तुरंत ((x,0)) में बदलें।

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किसी परवलय का एक शून्यक (9) है और सममिति अक्ष (x=2) है। दूसरा शून्यक क्या होगा?

A parabola has one zero (9) and axis of symmetry (x=2). What is the other zero?

Explanation opens after your attempt
Correct Answer

A. (-5)

Step 1

Concept

The average of the two zeroes is (2), so the other zero is (-5). Tip: set \( \frac{a+b}{2} \) equal to the axis of symmetry.

Step 2

Why this answer is correct

The correct answer is A. (-5). The average of the two zeroes is (2), so the other zero is (-5). Tip: set \( \frac{a+b}{2} \) equal to the axis of symmetry.

Step 3

Exam Tip

दो शून्यकों का औसत (2) है, इसलिए दूसरा शून्यक (-5) होगा। टिप: \( \frac{a+b}{2} \) को सममिति अक्ष के बराबर रखें।

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किसी परवलय का सममिति अक्ष (x=1) है और एक शून्यक (-5) है। दूसरा शून्यक क्या होगा?

The axis of symmetry of a parabola is (x=1) and one zero is (-5). What will be the other zero?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

The average of the two zeroes is (1), so the other zero is (7). Tip: the axis of symmetry passes through the midpoint of zeroes.

Step 2

Why this answer is correct

The correct answer is C. (7). The average of the two zeroes is (1), so the other zero is (7). Tip: the axis of symmetry passes through the midpoint of zeroes.

Step 3

Exam Tip

दो शून्यकों का औसत (1) होगा इसलिए दूसरा शून्यक (7) है। टिप: सममिति अक्ष शून्यकों के मध्य से गुजरता है।

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यदि (p(x)=x-2-5x+k) का एक शून्यक (2) है, तो दूसरा शून्यक और (x)-अक्ष कटान क्या होगा?

If (p(x)=x-2-5x+k) has one zero (2), what will be the other zero and the (x)-axis intersections?

Explanation opens after your attempt
Correct Answer

A. दूसरा (3), कटान ((2,0)), ((3,0))Other (3), intersections ((2,0)), ((3,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (5), so the other zero is (3). Tip: immediately convert a zero to ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (3), कटान ((2,0)), ((3,0)) / Other (3), intersections ((2,0)), ((3,0)). In the quadratic, the sum of zeroes is (5), so the other zero is (3). Tip: immediately convert a zero to ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (5) है, इसलिए दूसरा शून्यक (3) है। टिप: शून्यक को तुरंत ((x,0)) में बदलें।

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किसी परवलय का एक शून्यक (4) है और सममिति अक्ष (x=-1) है। दूसरा शून्यक क्या होगा?

A parabola has one zero (4) and axis of symmetry (x=-1). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (-6)

Step 1

Concept

The average of the two zeroes is (-1), so the other zero is (-6). Tip: set the average equal to the axis of symmetry.

Step 2

Why this answer is correct

The correct answer is A. (-6). The average of the two zeroes is (-1), so the other zero is (-6). Tip: set the average equal to the axis of symmetry.

Step 3

Exam Tip

दो शून्यकों का औसत (-1) है, इसलिए दूसरा शून्यक (-6) होगा। टिप: औसत को सममिति अक्ष के बराबर रखें।

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किसी बहुपद के शून्यक (-9) और (-2) हैं। बड़ा शून्यक कौन सा है?

The zeroes of a polynomial are (-9) and (-2). Which zero is greater?

Explanation opens after your attempt
Correct Answer

B. (-2)

Step 1

Concept

On the number line, (-2) is to the right of (-9). Tip: the less negative number is greater.

Step 2

Why this answer is correct

The correct answer is B. (-2). On the number line, (-2) is to the right of (-9). Tip: the less negative number is greater.

Step 3

Exam Tip

संख्या रेखा पर (-2), (-9) के दाईं ओर है। टिप: कम ऋणात्मक संख्या बड़ी होती है।

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एक परवलय (x)-अक्ष को ((-5,0)) और ((1,0)) पर काटता है। उसके शून्यकों का बड़ा मान क्या है?

A parabola cuts the (x)-axis at ((-5,0)) and ((1,0)). What is the greater zero?

Explanation opens after your attempt
Correct Answer

C. (1)

Step 1

Concept

The zeroes are (-5) and (1), and (1) is greater. Tip: the value to the right on the number line is greater.

Step 2

Why this answer is correct

The correct answer is C. (1). The zeroes are (-5) and (1), and (1) is greater. Tip: the value to the right on the number line is greater.

Step 3

Exam Tip

शून्यक (-5) और (1) हैं, जिनमें (1) बड़ा है। टिप: संख्या रेखा पर दाईं ओर वाला मान बड़ा होता है।

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यदि (x)-अक्ष को काटने वाले बिंदु ((-7,0)) और ((-3,0)) हैं तो बड़ा शून्यक कौन सा है?

If the points cutting the (x)-axis are ((-7,0)) and ((-3,0)) then which is the greater zero?

Explanation opens after your attempt
Correct Answer

A. (-3)

Step 1

Concept

The zeroes are (-7) and (-3) and (-3) is greater. Tip: the number to the right on the number line is greater.

Step 2

Why this answer is correct

The correct answer is A. (-3). The zeroes are (-7) and (-3) and (-3) is greater. Tip: the number to the right on the number line is greater.

Step 3

Exam Tip

शून्यक (-7) और (-3) हैं और (-3) बड़ा है। टिप: संख्या रेखा पर दाईं ओर वाली संख्या बड़ी होती है।

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समान्तर श्रेणी \(-92,-69,-46,\ldots\) में (900) से बड़ा पहला पद कौन-सा है?

In the AP \(-92,-69,-46,\ldots\), what is the first term greater than (900)?

Explanation opens after your attempt
Correct Answer

B. (920)

Step 1

Concept

(a_n=-92+23(n-1)). The first term after (900) is (920).

Step 2

Why this answer is correct

The correct answer is B. (920). (a_n=-92+23(n-1)). The first term after (900) is (920).

Step 3

Exam Tip

(a_n=-92+23(n-1))। (900) के बाद आने वाला पहला पद (920) है।

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(1500) से बड़े (37) के गुणजों की AP \(1517,1554,1591,\ldots\) है। इसका (31)वां पद क्या होगा?

The AP of multiples of (37) greater than (1500) is \(1517,1554,1591,\ldots\). What will be its (31)st term?

Explanation opens after your attempt
Correct Answer

B. (2627)

Step 1

Concept

Here (a=1517) and (d=37). \(a_{31}=1517+30\times37=2627\).

Step 2

Why this answer is correct

The correct answer is B. (2627). Here (a=1517) and (d=37). \(a_{31}=1517+30\times37=2627\).

Step 3

Exam Tip

यहां (a=1517) और (d=37)। \(a_{31}=1517+30\times37=2627\)।

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समान्तर श्रेणी \(240,222,204,\ldots\) में (-150) से बड़ा अंतिम पद कौन-सा है?

In the AP \(240,222,204,\ldots\), which is the last term greater than (-150)?

Explanation opens after your attempt
Correct Answer

B. (-144)

Step 1

Concept

(d=-18). After (-144), (-162) comes, so the last term greater than (-150) is (-144).

Step 2

Why this answer is correct

The correct answer is B. (-144). (d=-18). After (-144), (-162) comes, so the last term greater than (-150) is (-144).

Step 3

Exam Tip

(d=-18) है। (-144) के बाद (-162) आता है इसलिए (-150) से बड़ा अंतिम पद (-144) है।

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समान्तर श्रेणी \(-68,-49,-30,\ldots\) में (700) से बड़ा पहला पद कौन-सा है?

In the AP \(-68,-49,-30,\ldots\), what is the first term greater than (700)?

Explanation opens after your attempt
Correct Answer

B. (711)

Step 1

Concept

(a_n=-68+19(n-1)). The first term after (700) is (711).

Step 2

Why this answer is correct

The correct answer is B. (711). (a_n=-68+19(n-1)). The first term after (700) is (711).

Step 3

Exam Tip

(a_n=-68+19(n-1))। (700) के बाद आने वाला पहला पद (711) है।

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(1200) से बड़े (31) के गुणजों की AP \(1209,1240,1271,\ldots\) है। इसका (29)वां पद क्या होगा?

The AP of multiples of (31) greater than (1200) is \(1209,1240,1271,\ldots\). What will be its (29)th term?

Explanation opens after your attempt
Correct Answer

A. (2077)

Step 1

Concept

Here (a=1209) and (d=31). \(a_{29}=1209+28\times31=2077\).

Step 2

Why this answer is correct

The correct answer is A. (2077). Here (a=1209) and (d=31). \(a_{29}=1209+28\times31=2077\).

Step 3

Exam Tip

यहां (a=1209) और (d=31)। \(a_{29}=1209+28\times31=2077\)।

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समान्तर श्रेणी \(156,142,128,\ldots\) में (-120) से बड़ा अंतिम पद कौन-सा है?

In the AP \(156,142,128,\ldots\), which is the last term greater than (-120)?

Explanation opens after your attempt
Correct Answer

B. (-112)

Step 1

Concept

(d=-14). (-110) is not in this AP, while after (-112), (-126) comes.

Step 2

Why this answer is correct

The correct answer is B. (-112). (d=-14). (-110) is not in this AP, while after (-112), (-126) comes.

Step 3

Exam Tip

(d=-14) है। (-110) इस श्रेणी में नहीं है, जबकि (-112) के बाद (-126) आता है।

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समान्तर श्रेणी \(-47,-31,-15,\ldots\) में (500) से बड़ा पहला पद कौन-सा है?

In the AP \(-47,-31,-15,\ldots\), what is the first term greater than (500)?

Explanation opens after your attempt
Correct Answer

B. (513)

Step 1

Concept

(a_n=-47+16(n-1)). The first term after (500) is (513).

Step 2

Why this answer is correct

The correct answer is B. (513). (a_n=-47+16(n-1)). The first term after (500) is (513).

Step 3

Exam Tip

(a_n=-47+16(n-1))। (500) के बाद आने वाला पहला पद (513) है।

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(900) से बड़े (23) के गुणजों की समान्तर श्रेणी \(920,943,966,\ldots\) है। इसका (27)वां पद क्या होगा?

The AP of multiples of (23) greater than (900) is \(920,943,966,\ldots\). What will be its (27)th term?

Explanation opens after your attempt
Correct Answer

A. (1518)

Step 1

Concept

Here (a=920) and (d=23). \(a_{27}=920+26\times23=1518\).

Step 2

Why this answer is correct

The correct answer is A. (1518). Here (a=920) and (d=23). \(a_{27}=920+26\times23=1518\).

Step 3

Exam Tip

यहां (a=920) और (d=23)। \(a_{27}=920+26\times23=1518\)।

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समान्तर श्रेणी \(121,109,97,\ldots\) में (-75) से बड़ा अंतिम पद कौन-सा है?

In the AP \(121,109,97,\ldots\), which is the last term greater than (-75)?

Explanation opens after your attempt
Correct Answer

A. (-71)

Step 1

Concept

(d=-12). After (-71), the next term is (-83), so the last term greater than (-75) is (-71).

Step 2

Why this answer is correct

The correct answer is A. (-71). (d=-12). After (-71), the next term is (-83), so the last term greater than (-75) is (-71).

Step 3

Exam Tip

(d=-12) है। (-71) के बाद (-83) आता है, इसलिए (-75) से बड़ा अंतिम पद (-71) है।

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समान्तर श्रेणी \(-38,-25,-12,\ldots\) में (300) से बड़ा पहला पद कौन-सा है?

In the AP \(-38,-25,-12,\ldots\), what is the first term greater than (300)?

Explanation opens after your attempt
Correct Answer

B. (313)

Step 1

Concept

(a_n=-38+13(n-1)). The first term after (300) is (313).

Step 2

Why this answer is correct

The correct answer is B. (313). (a_n=-38+13(n-1)). The first term after (300) is (313).

Step 3

Exam Tip

(a_n=-38+13(n-1))। (300) के बाद आने वाला पहला पद (313) है।

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(700) से बड़े (19) के गुणजों की समान्तर श्रेणी \(703,722,741,\ldots\) है। इसका (24)वां पद क्या होगा?

The AP of multiples of (19) greater than (700) is \(703,722,741,\ldots\). What is its (24)th term?

Explanation opens after your attempt
Correct Answer

B. (1140)

Step 1

Concept

Here (a=703) and (d=19). \(a_{24}=703+23\times19=1140\).

Step 2

Why this answer is correct

The correct answer is B. (1140). Here (a=703) and (d=19). \(a_{24}=703+23\times19=1140\).

Step 3

Exam Tip

यहां (a=703) और (d=19)। \(a_{24}=703+23\times19=1140\)।

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समान्तर श्रेणी \(104,95,86,\ldots\) में (-50) से बड़ा अंतिम पद कौन-सा है?

In the AP \(104,95,86,\ldots\), which is the last term greater than (-50)?

Explanation opens after your attempt
Correct Answer

A. (-41)

Step 1

Concept

(d=-9). The last term greater than (-50) is (-40) if it appears, so always verify actual terms before choosing.

Step 2

Why this answer is correct

The correct answer is A. (-41). (d=-9). The last term greater than (-50) is (-40) if it appears, so always verify actual terms before choosing.

Step 3

Exam Tip

(d=-9) है। (-50) से बड़ा अंतिम पद (-40) नहीं बल्कि (-40) श्रेणी में नहीं आता इसलिए (-40) से पहले सही पद (-40) जांचना चाहिए।

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समान्तर श्रेणी \(-25,-14,-3,\ldots\) में (200) से बड़ा पहला पद कौन-सा है?

In the AP \(-25,-14,-3,\ldots\), what is the first term greater than (200)?

Explanation opens after your attempt
Correct Answer

B. (206)

Step 1

Concept

(a_n=-25+11(n-1)). The first term after (200) is (206).

Step 2

Why this answer is correct

The correct answer is B. (206). (a_n=-25+11(n-1)). The first term after (200) is (206).

Step 3

Exam Tip

(a_n=-25+11(n-1))। (200) के बाद आने वाला पहला पद (206) है।

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(500) से बड़े (17) के गुणजों की समान्तर श्रेणी \(510,527,544,\ldots\) है। इसका (19)वां पद क्या होगा?

The AP of multiples of (17) greater than (500) is \(510,527,544,\ldots\). What is its (19)th term?

Explanation opens after your attempt
Correct Answer

B. (816)

Step 1

Concept

Here (a=510) and (d=17). \(a_{19}=510+18\times17=816\).

Step 2

Why this answer is correct

The correct answer is B. (816). Here (a=510) and (d=17). \(a_{19}=510+18\times17=816\).

Step 3

Exam Tip

यहां (a=510) और (d=17)। \(a_{19}=510+18\times17=816\)।

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समान्तर श्रेणी \(85,77,69,\ldots\) में (-35) से बड़ा अंतिम पद कौन-सा है?

In the AP \(85,77,69,\ldots\), which is the last term greater than (-35)?

Explanation opens after your attempt
Correct Answer

C. (-31)

Step 1

Concept

(d=-8). The last term greater than (-35) is (-27) because the next term is (-35).

Step 2

Why this answer is correct

The correct answer is C. (-31). (d=-8). The last term greater than (-35) is (-27) because the next term is (-35).

Step 3

Exam Tip

(d=-8) है। (-35) से बड़ा अंतिम पद (-27) है क्योंकि अगला पद (-35) है।

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समान्तर श्रेणी \(-12,-5,2,\ldots\) में (100) से बड़ा पहला पद कौन-सा है?

In the AP \(-12,-5,2,\ldots\), what is the first term greater than (100)?

Explanation opens after your attempt
Correct Answer

B. (103)

Step 1

Concept

(a_n=-12+7(n-1)). The first term after (100) is (103).

Step 2

Why this answer is correct

The correct answer is B. (103). (a_n=-12+7(n-1)). The first term after (100) is (103).

Step 3

Exam Tip

(a_n=-12+7(n-1))। (100) के बाद आने वाला पहला पद (103) है।

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(250) से बड़े (13) के गुणजों की AP \(260,273,286,\ldots\) है। इसका (22)वां पद क्या होगा?

The AP of multiples of (13) greater than (250) is \(260,273,286,\ldots\). What is its (22)nd term?

Explanation opens after your attempt
Correct Answer

B. (533)

Step 1

Concept

Here (a=260) and (d=13). \(a_{22}=260+21\times13=533\).

Step 2

Why this answer is correct

The correct answer is B. (533). Here (a=260) and (d=13). \(a_{22}=260+21\times13=533\).

Step 3

Exam Tip

यहां (a=260) और (d=13)। \(a_{22}=260+21\times13=533\)।

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समान्तर श्रेणी \(64,57,50,\ldots\) में (-20) से बड़ा अंतिम पद कौन-सा है?

In the AP \(64,57,50,\ldots\), which is the last term greater than (-20)?

Explanation opens after your attempt
Correct Answer

A. (-13)

Step 1

Concept

(d=-7). The last term greater than (-20) is (-13) because the next term is (-20).

Step 2

Why this answer is correct

The correct answer is A. (-13). (d=-7). The last term greater than (-20) is (-13) because the next term is (-20).

Step 3

Exam Tip

(d=-7) है। (-20) से बड़ा अंतिम पद (-13) है क्योंकि अगला पद (-20) है।

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समान्तर श्रेणी \(2,9,16,\ldots\) में (200) से बड़ा पहला पद कौन-सा है?

What is the first term greater than (200) in the AP \(2,9,16,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. (205)

Step 1

Concept

(a_n=2+7(n-1)). The first term greater than (200) is (205) because the previous term is (198).

Step 2

Why this answer is correct

The correct answer is B. (205). (a_n=2+7(n-1)). The first term greater than (200) is (205) because the previous term is (198).

Step 3

Exam Tip

(a_n=2+7(n-1))। (200) से बड़ा पहला पद (205) है क्योंकि पिछला पद (198) है।

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(400) से बड़े (12) के गुणजों की AP \(408,420,432,\ldots\) है। इसका (18)वां पद क्या होगा?

The AP of multiples of (12) greater than (400) is \(408,420,432,\ldots\). What is its (18)th term?

Explanation opens after your attempt
Correct Answer

A. (612)

Step 1

Concept

Here (a=408) and (d=12) so \(a_{18}=408+17\times12=612\). Choose the first correct multiple after the limit.

Step 2

Why this answer is correct

The correct answer is A. (612). Here (a=408) and (d=12) so \(a_{18}=408+17\times12=612\). Choose the first correct multiple after the limit.

Step 3

Exam Tip

यहां (a=408) और (d=12) है इसलिए \(a_{18}=408+17\times12=612\)। सीमा के बाद पहला सही गुणज चुनें।

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(300) से बड़े (8) के गुणजों की समान्तर श्रेणी \(304,312,320,\ldots\) है। इसका (25)वां पद क्या होगा?

The AP of multiples of (8) greater than (300) is \(304,312,320,\ldots\). What is its (25)th term?

Explanation opens after your attempt
Correct Answer

A. (496)

Step 1

Concept

Here (a=304) and (d=8) so \(a_{25}=304+24\times8=496\). Choose the first correct multiple after the limit.

Step 2

Why this answer is correct

The correct answer is A. (496). Here (a=304) and (d=8) so \(a_{25}=304+24\times8=496\). Choose the first correct multiple after the limit.

Step 3

Exam Tip

यहां (a=304) और (d=8) है इसलिए \(a_{25}=304+24\times8=496\)। सीमा के बाद पहला सही गुणज चुनें।

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समांतर श्रेढ़ी \(12,19,26,33,\ldots\) में प्रत्येक पद पिछले पद से कितना अधिक है?

In the arithmetic progression \(12,19,26,33,\ldots\), how much greater is each term than the previous term?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

Each next term is (7) greater than the previous term. This is the common difference of this progression.

Step 2

Why this answer is correct

The correct answer is C. (7). Each next term is (7) greater than the previous term. This is the common difference of this progression.

Step 3

Exam Tip

हर अगला पद पिछले पद से (7) अधिक है। यही इस श्रेढ़ी का सार्व अंतर है।

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समांतर श्रेढ़ी \(1,4,7,10,\ldots\) में प्रत्येक पद पिछले पद से कितना अधिक है?

In the arithmetic progression \(1,4,7,10,\ldots\), how much greater is each term than the previous term?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

Each next term is (3) greater than the previous term. This is the common difference of the sequence.

Step 2

Why this answer is correct

The correct answer is C. (3). Each next term is (3) greater than the previous term. This is the common difference of the sequence.

Step 3

Exam Tip

हर अगला पद पिछले पद से (3) अधिक है। यही इस श्रेढ़ी का सार्व अंतर 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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कौन-सी संख्या (1) और (2) के बीच एक अपरिमेय संख्या है, पर \(\sqrt{2}\) से बड़ी है?

Which number is an irrational number between (1) and (2), but greater than \(\sqrt{2}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{3}\)

Step 1

Concept

\(\sqrt{3}\) is about (1.732), so it lies between (1) and (2).

Step 2

Why this answer is correct

Since (3>2), \(\sqrt{3}>\sqrt{2}\).

Step 3

Exam Tip

For positive square roots, compare the numbers inside the roots. चरण 1: \(\sqrt{3}\) लगभग (1.732) है, इसलिए यह (1) और (2) के बीच है। चरण 2: (3>2), इसलिए \(\sqrt{3}>\sqrt{2}\)। चरण 3: धनात्मक वर्गमूलों की तुलना में अंदर की संख्याओं की तुलना कर सकते हैं।

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ऐसी सबसे छोटी संख्या कौन सी है जो (36), (48) और (60) से पूरी तरह विभाजित हो और (1000) से बड़ी हो?

What is the smallest number greater than (1000) that is exactly divisible by (36), (48), and (60)?

Explanation opens after your attempt
Correct Answer

C. (1440)

Step 1

Concept

First find the LCM of (36), (48), and (60).

Step 2

Why this answer is correct

\(36=2^2\times 3^2\), \(48=2^4\times 3\), \(60=2^2\times 3\times 5\), so the LCM is \(2^4\times 3^2\times 5=720\). The smallest multiple greater than (1000) is (1440).

Step 3

Exam Tip

Find the LCM first, then choose its multiple according to the limit. चरण 1: पहले (36), (48), और (60) का लघुत्तम समापवर्त्य निकालें। चरण 2: \(36=2^2\times 3^2\), \(48=2^4\times 3\), \(60=2^2\times 3\times 5\), इसलिए लघुत्तम समापवर्त्य \(2^4\times 3^2\times 5=720\) है। (1000) से बड़ा सबसे छोटा गुणज (1440) है। चरण 3: पहले लघुत्तम समापवर्त्य, फिर सीमा के अनुसार उसका गुणज लें।

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अंकगणित के मूल प्रमेय के अनुसार 1 से बड़ी हर धनात्मक पूर्ण संख्या को किस रूप में लिखा जा सकता है?

According to the Fundamental Theorem of Arithmetic, every positive integer greater than 1 can be written in which form?

Explanation opens after your attempt
Correct Answer

A. अभाज्य संख्याओं के गुणनफल के रूप मेंAs a product of prime numbers

Step 1

Concept

This theorem is connected with prime factorisation.

Step 2

Why this answer is correct

Every positive integer greater than 1 can be written as a product of prime numbers.

Step 3

Exam Tip

In exams, remember it through prime factorisation. चरण 1: यह प्रमेय अभाज्य गुणनखंडन से जुड़ा है। चरण 2: 1 से बड़ी हर धनात्मक पूर्ण संख्या अभाज्य संख्याओं के गुणनफल के रूप में लिखी जा सकती है। चरण 3: परीक्षा में इस विचार को अभाज्य गुणनखंडन से जोड़कर याद रखें।

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लैंगिक जनन में विविधता अलैंगिक जनन से अधिक क्यों होती है?

Why is variation greater in sexual reproduction than in asexual reproduction?

Explanation opens after your attempt
Correct Answer

A. क्योंकि संतान को दोनों जनकों से आनुवंशिक सूचना मिलती हैBecause offspring get genetic information from both parents

Step 1

Concept

Sexual reproduction involves contribution from both parents.

Step 2

Why this answer is correct

Genetic information from both combines to make new combinations.

Step 3

Exam Tip

Therefore offspring show more variation. चरण 1: लैंगिक जनन में माता और पिता दोनों का योगदान होता है। चरण 2: दोनों से मिली आनुवंशिक सूचना मिलकर नए संयोजन बनाती है। चरण 3: इसलिए संतान में विविधता अधिक होती है।

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लैंगिक प्रजनन में भिन्नता अलैंगिक प्रजनन की तुलना में अधिक क्यों होती है?

Why is variation greater in sexual reproduction than in asexual reproduction?

Explanation opens after your attempt
Correct Answer

A. क्योंकि दो जनकों के आनुवंशिक पदार्थ का मिश्रण होता हैBecause genetic material from two parents combines

Step 1

Concept

Sexual reproduction has contribution from both male and female.

Step 2

Why this answer is correct

Combination of genetic material from both creates new variation.

Step 3

Exam Tip

Therefore offspring can be more different. चरण 1: लैंगिक प्रजनन में नर और मादा दोनों का योगदान होता है। चरण 2: दोनों से आए आनुवंशिक पदार्थ का संयोजन नई भिन्नता बनाता है। चरण 3: इसलिए इसमें संतानें अधिक अलग अलग हो सकती हैं।

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किस लवण के विलयन का पीएच सात से अधिक होने की संभावना है?

Which salt solution is likely to have pH greater than 7?

Explanation opens after your attempt
Correct Answer

A. सोडियम कार्बोनेटSodium carbonate

Step 1

Concept

pH greater than 7 indicates basic nature.

Step 2

Why this answer is correct

Sodium carbonate solution is basic.

Step 3

Exam Tip

Therefore its pH is likely to be greater than 7. चरण 1: सात से अधिक पीएच क्षारीय प्रकृति का संकेत है। चरण 2: सोडियम कार्बोनेट का विलयन क्षारीय होता है। चरण 3: इसलिए उसका पीएच सात से अधिक होने की संभावना है।

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समान सांद्रता वाले हाइड्रोक्लोरिक अम्ल और एथेनोइक अम्ल में हाइड्रोक्लोरिक अम्ल की चालकता अधिक क्यों होती है?

Why is the conductivity of hydrochloric acid greater than ethanoic acid at the same concentration?

Explanation opens after your attempt
Correct Answer

A. हाइड्रोक्लोरिक अम्ल अधिक पूर्ण आयनित होता हैHydrochloric acid ionises more completely

Step 1

Concept

Conductivity depends on the number of mobile ions in solution.

Step 2

Why this answer is correct

Hydrochloric acid is strong and gives more ions.

Step 3

Exam Tip

Therefore it conducts better at the same concentration. चरण 1: चालकता विलयन में चलायमान आयनों की संख्या पर निर्भर करती है। चरण 2: हाइड्रोक्लोरिक अम्ल प्रबल अम्ल है और अधिक आयन देता है। चरण 3: इसलिए समान सांद्रता पर इसकी चालकता अधिक होती है।

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पीएच मान सात से अधिक हो तो विलयन कैसा माना जाता है?

If the pH value is greater than 7, how is the solution considered?

Explanation opens after your attempt
Correct Answer

B. क्षारीयBasic

Step 1

Concept

pH 7 indicates neutrality.

Step 2

Why this answer is correct

A pH greater than 7 shows basic nature.

Step 3

Exam Tip

Therefore such a solution is considered basic. चरण 1: पीएच सात उदासीनता को दर्शाता है। चरण 2: सात से अधिक पीएच क्षारीय प्रकृति दिखाता है। चरण 3: इसलिए ऐसा विलयन क्षारीय माना जाता है।

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पीएच मान सात से अधिक हो तो विलयन की प्रकृति क्या होती है?

If the pH value is greater than 7, what is the nature of the solution?

Explanation opens after your attempt
Correct Answer

B. क्षारीयBasic

Step 1

Concept

pH 7 is the neutral value.

Step 2

Why this answer is correct

pH above 7 shows basic nature.

Step 3

Exam Tip

Therefore such a solution is basic. चरण 1: पीएच सात उदासीनता का मान है। चरण 2: सात से अधिक पीएच क्षारीय प्रकृति बताता है। चरण 3: इसलिए ऐसा विलयन क्षारीय होता है।

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पीएच मान सात से अधिक होने पर विलयन कैसा होता है?

What is the nature of a solution with pH greater than 7?

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Correct Answer

A. क्षारीयBasic

Step 1

Concept

A solution with pH greater than 7 is basic.

Step 2

Why this answer is correct

A basic solution can turn red litmus blue.

Step 3

Exam Tip

Soap solution is a simple example. चरण 1: पीएच सात से अधिक होने पर विलयन क्षारीय होता है। चरण 2: क्षारीय विलयन लाल लिटमस को नीला कर सकता है। चरण 3: साबुन का घोल इसका आसान उदाहरण है।

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पीएच सात से अधिक होने पर विलयन की सामान्य प्रकृति क्या होती है?

What is the general nature of a solution when its pH is greater than 7?

Explanation opens after your attempt
Correct Answer

B. क्षारीयBasic

Step 1

Concept

pH 7 indicates neutrality.

Step 2

Why this answer is correct

pH greater than 7 shows basic nature.

Step 3

Exam Tip

Therefore such a solution is basic. चरण 1: पीएच सात उदासीनता को दर्शाता है। चरण 2: सात से अधिक पीएच क्षारीय प्रकृति दिखाता है। चरण 3: इसलिए ऐसा विलयन क्षारीय होगा।

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पीएच मान सात से अधिक होने पर विलयन की प्रकृति कैसी होती है?

What is the nature of a solution when its pH is greater than seven?

Explanation opens after your attempt
Correct Answer

B. क्षारीयBasic

Step 1

Concept

pH greater than seven shows basicity.

Step 2

Why this answer is correct

Such solutions can turn red litmus blue.

Step 3

Exam Tip

Higher pH shows greater basicity. चरण 1: पीएच मान सात से अधिक होने पर क्षारीयता दिखाता है। चरण 2: ऐसे विलयन लाल लिटमस को नीला कर सकते हैं। चरण 3: अधिक पीएच अधिक क्षारीयता दर्शाता है।

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पीएच मान सात से अधिक होने पर विलयन कैसा होता है?

If the pH value is greater than seven what is the nature of the solution?

Explanation opens after your attempt
Correct Answer

B. क्षारीयBasic

Step 1

Concept

A solution with pH greater than seven is basic.

Step 2

Why this answer is correct

Such solutions can turn red litmus blue.

Step 3

Exam Tip

Identifying nature from pH is a simple exam point. चरण 1: पीएच मान सात से अधिक हो तो विलयन क्षारीय होता है। चरण 2: ऐसे विलयन लाल लिटमस को नीला कर सकते हैं। चरण 3: पीएच से प्रकृति पहचानना सरल परीक्षा बिंदु है।

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जिस विलयन का पीएच मान सात से अधिक हो वह किस प्रकृति का होता है?

A solution with pH greater than seven is of which nature?

Explanation opens after your attempt
Correct Answer

C. क्षारीयBasic

Step 1

Concept

pH seven shows neutrality.

Step 2

Why this answer is correct

pH greater than seven shows basic nature.

Step 3

Exam Tip

As pH increases basicity increases. चरण 1: सात पीएच मान उदासीनता दिखाता है। चरण 2: सात से अधिक पीएच मान क्षारीय प्रकृति बताता है। चरण 3: पीएच मान बढ़ने पर क्षारीयता बढ़ती है।

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महान हिमालय में स्थायी हिम रेखा और हिमनदों की उपस्थिति किस तथ्य को मजबूत करती है?

The presence of permanent snow line and glaciers in the Greater Himalaya strengthens which fact?

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Correct Answer

C. यह ऊंचे शिखरों और बारहमासी नदी स्रोतों से जुड़ा हैIt is linked with high peaks and perennial river sources

Step 1

Concept

The Greater Himalaya has high peaks and glaciers that feed many rivers. For exams link Himadri with river sources.

Step 2

Why this answer is correct

The correct answer is C. यह ऊंचे शिखरों और बारहमासी नदी स्रोतों से जुड़ा है / It is linked with high peaks and perennial river sources. The Greater Himalaya has high peaks and glaciers that feed many rivers. For exams link Himadri with river sources.

Step 3

Exam Tip

महान हिमालय में ऊंचे शिखर और हिमनद मिलते हैं जो कई नदियों को जल देते हैं। परीक्षा में हिमाद्रि और नदी स्रोत जोड़ें।

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महान हिमालय में हिमनदों की अधिकता किस भौतिक परिणाम को सबसे सीधे प्रभावित करती है?

The abundance of glaciers in the Greater Himalaya most directly affects which physical result?

Explanation opens after your attempt
Correct Answer

B. बारहमासी हिमालयी नदियों का जल स्रोतWater source of perennial Himalayan rivers

Step 1

Concept

Glaciers supply water to Himalayan rivers for long periods. For exams remember the glacier and river source link.

Step 2

Why this answer is correct

The correct answer is B. बारहमासी हिमालयी नदियों का जल स्रोत / Water source of perennial Himalayan rivers. Glaciers supply water to Himalayan rivers for long periods. For exams remember the glacier and river source link.

Step 3

Exam Tip

हिमनद हिमालयी नदियों को लंबे समय तक जल देते हैं। परीक्षा में हिमनद और नदी स्रोत संबंध याद रखें।

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महान हिमालय की कौन सी विशेषता उसे शिवालिक से अलग करती है?

Which feature distinguishes the Greater Himalaya from the Shiwalik?

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Correct Answer

A. इसमें सबसे ऊंचे हिमालयी शिखर और हिमनद मिलते हैंIt has the highest Himalayan peaks and glaciers

Step 1

Concept

The Greater Himalaya or Himadri has high peaks and glaciers. For exams link Himadri with the High Himalaya.

Step 2

Why this answer is correct

The correct answer is A. इसमें सबसे ऊंचे हिमालयी शिखर और हिमनद मिलते हैं / It has the highest Himalayan peaks and glaciers. The Greater Himalaya or Himadri has high peaks and glaciers. For exams link Himadri with the High Himalaya.

Step 3

Exam Tip

महान हिमालय या हिमाद्रि में ऊंचे शिखर और हिमनद मिलते हैं। परीक्षा में हिमाद्रि को उच्च हिमालय से जोड़ें।

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महान हिमालय को किस नाम से जाना जाता है?

By which name is the Greater Himalaya known?

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Correct Answer

C. हिमाद्रिHimadri

Step 1

Concept

The Greater Himalaya is called Himadri. For exams remember it as the highest Himalayan range.

Step 2

Why this answer is correct

The correct answer is C. हिमाद्रि / Himadri. The Greater Himalaya is called Himadri. For exams remember it as the highest Himalayan range.

Step 3

Exam Tip

महान हिमालय को हिमाद्रि कहा जाता है। परीक्षा में इसे सबसे ऊंची हिमालयी श्रेणी याद रखें।

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जापान की महान पूर्वी एशिया सह समृद्धि क्षेत्र की धारणा में विरोधाभास क्या था?

What was the contradiction in Japan's idea of the Greater East Asia Co-Prosperity Sphere?

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Correct Answer

A. स्वतंत्रता की भाषा के साथ जापानी प्रभुत्व और संसाधन नियंत्रण जुड़ा थाLanguage of liberation was linked with Japanese domination and resource control

Step 1

Concept

Japan used the language of Asian liberation but in practice imperial control remained. For exams separate propaganda from actual policy.

Step 2

Why this answer is correct

The correct answer is A. स्वतंत्रता की भाषा के साथ जापानी प्रभुत्व और संसाधन नियंत्रण जुड़ा था / Language of liberation was linked with Japanese domination and resource control. Japan used the language of Asian liberation but in practice imperial control remained. For exams separate propaganda from actual policy.

Step 3

Exam Tip

जापान ने एशियाई मुक्ति की भाषा प्रयोग की पर व्यवहार में साम्राज्यवादी नियंत्रण रहा। परीक्षा में प्रचार और वास्तविक नीति अलग करें।

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कौन सा बहुपद (x=0) को शून्य बनाता है?

Which polynomial makes (x=0) a zero?

Explanation opens after your attempt
Correct Answer

B. \(3x^3-2x\)

Step 1

Concept

Substituting (x=0) in \(3x^3-2x\) gives (0). To make (x=0) a zero, the constant term must be (0).

Step 2

Why this answer is correct

The correct answer is B. \(3x^3-2x\). Substituting (x=0) in \(3x^3-2x\) gives (0). To make (x=0) a zero, the constant term must be (0).

Step 3

Exam Tip

(x=0) रखने पर \(3x^3-2x=0\) मिलता है। (x=0) को शून्य बनाने के लिए अचर पद (0) होना चाहिए।

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यदि \(x^2+mx+n\) का एक शून्यक (0) है और दूसरा शून्यक (5) है, तो (m+n) क्या होगा?

If one zero of \(x^2+mx+n\) is (0) and the other zero is (5), what is (m+n)?

Explanation opens after your attempt
Correct Answer

A. (-5)

Step 1

Concept

The sum is (5), so (m=-5), and the product is (0), so (n=0). Hence (m+n=-5).

Step 2

Why this answer is correct

The correct answer is A. (-5). The sum is (5), so (m=-5), and the product is (0), so (n=0). Hence (m+n=-5).

Step 3

Exam Tip

योग (5) है इसलिए (m=-5), और गुणनफल (0) है इसलिए (n=0)। अतः (m+n=-5)।

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कौन सा बहुपद (x=0) को शून्य नहीं बनाता?

Which polynomial does not make (x=0) a zero?

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Correct Answer

D. \(x^2+1\)

Step 1

Concept

On substituting (x=0), \(x^2+1=1\), so (0) is not its zero. The constant term is decisive at (x=0).

Step 2

Why this answer is correct

The correct answer is D. \(x^2+1\). On substituting (x=0), \(x^2+1=1\), so (0) is not its zero. The constant term is decisive at (x=0).

Step 3

Exam Tip

(x=0) रखने पर \(x^2+1=1\), इसलिए (0) इसका शून्य नहीं है। (x=0) पर अचर पद निर्णायक होता है।

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यदि किसी बहुपद का एक शून्यक \(\sqrt{11}\) है और गुणांक परिमेय हैं, तो कौन सा शून्यक भी होना चाहिए?

If one zero of a polynomial is \(\sqrt{11}\) and the coefficients are rational, which zero should also occur?

Explanation opens after your attempt
Correct Answer

A. -\(\sqrt{11}\)

Step 1

Concept

The conjugate of \(\sqrt{11}=0+\sqrt{11}\) is \(-\sqrt{11}\). In exams also identify the case (a=0).

Step 2

Why this answer is correct

The correct answer is A. -\(\sqrt{11}\). The conjugate of \(\sqrt{11}=0+\sqrt{11}\) is \(-\sqrt{11}\). In exams also identify the case (a=0).

Step 3

Exam Tip

\(\sqrt{11}=0+\sqrt{11}\) का संयुग्मी \(-\sqrt{11}\) है। परीक्षा में (a=0) वाला संयुग्मी भी पहचानें।

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यदि \(2+\sqrt{3}\) एक बहुपद \(x^2-4x+1\) का शून्यक है, तो दूसरा शून्यक क्या होगा?

If \(2+\sqrt{3}\) is a zero of the polynomial \(x^2-4x+1\), what is the other zero?

Explanation opens after your attempt
Correct Answer

A. \(2-\sqrt{3}\)

Step 1

Concept

For a quadratic with rational coefficients, if \(a+\sqrt{b}\) is a zero then \(a-\sqrt{b}\) is also a zero. The conjugate-root rule is useful in exams.

Step 2

Why this answer is correct

The correct answer is A. \(2-\sqrt{3}\). For a quadratic with rational coefficients, if \(a+\sqrt{b}\) is a zero then \(a-\sqrt{b}\) is also a zero. The conjugate-root rule is useful in exams.

Step 3

Exam Tip

परिमेय गुणांकों वाले द्विघात में \(a+\sqrt{b}\) के साथ \(a-\sqrt{b}\) भी शून्यक होता है। परीक्षा में संयुग्मी मूल का नियम उपयोगी है।

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यदि (p(x)=x-2-2kx+5) का एक शून्यक \(\sqrt{5}\) है, तो दूसरा शून्यक और (k) क्या होंगे?

If one zero of (p(x)=x-2-2kx+5) is \(\sqrt{5}\), what will be the other zero and (k)?

Explanation opens after your attempt
Correct Answer

A. दूसरा \(\sqrt{5}\), \(k=\sqrt{5}\)Other \(\sqrt{5}\), \(k=\sqrt{5}\)

Step 1

Concept

The product is (5), so the other zero is \(\frac{5}{\sqrt{5}}=\sqrt{5}\). The sum is \(2\sqrt{5}=2k\), hence \(k=\sqrt{5}\).

Step 2

Why this answer is correct

The correct answer is A. दूसरा \(\sqrt{5}\), \(k=\sqrt{5}\) / Other \(\sqrt{5}\), \(k=\sqrt{5}\). The product is (5), so the other zero is \(\frac{5}{\sqrt{5}}=\sqrt{5}\). The sum is \(2\sqrt{5}=2k\), hence \(k=\sqrt{5}\).

Step 3

Exam Tip

गुणनफल (5) है, इसलिए दूसरा शून्यक \(\frac{5}{\sqrt{5}}=\sqrt{5}\) होगा। योग \(2\sqrt{5}=2k\), अतः \(k=\sqrt{5}\) है।

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किसी परवलय का सममिति अक्ष (x=2) है और एक शून्यक (-3) है। दूसरा शून्यक क्या होगा?

The axis of symmetry of a parabola is (x=2) and one zero is (-3). What will be the other zero?

Explanation opens after your attempt
Correct Answer

A. (7)

Step 1

Concept

The average of the two zeroes is (2), so the other zero is (7). Tip: in a parabola the axis of symmetry passes through the midpoint of the zeroes.

Step 2

Why this answer is correct

The correct answer is A. (7). The average of the two zeroes is (2), so the other zero is (7). Tip: in a parabola the axis of symmetry passes through the midpoint of the zeroes.

Step 3

Exam Tip

दो शून्यकों का औसत (2) होगा, इसलिए दूसरा शून्यक (7) है। टिप: परवलय में सममिति अक्ष शून्यकों के मध्य से गुजरता है।

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यदि (p(-3)=0), तो बहुपद का कौन-सा शून्यक है?

If (p(-3)=0), which value is a zero of the polynomial?

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Correct Answer

A. (-3)

Step 1

Concept

The (x)-value for which (p(x)=0) is a zero. Hence (-3) is a zero of the polynomial.

Step 2

Why this answer is correct

The correct answer is A. (-3). The (x)-value for which (p(x)=0) is a zero. Hence (-3) is a zero of the polynomial.

Step 3

Exam Tip

जिस (x)-मान पर (p(x)=0) हो वही शून्यक होता है। इसलिए (-3) बहुपद का शून्यक है।

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किसी बहुपद के ग्राफ पर शून्यक पहचानने के लिए कौन-सा मान शून्य होना चाहिए?

Which value must be zero to identify a zero on the graph of a polynomial?

Explanation opens after your attempt
Correct Answer

A. बहुपद का मानValue of the polynomial

Step 1

Concept

At a zero, the polynomial value is (0). While reading a graph, look for points where (y=0).

Step 2

Why this answer is correct

The correct answer is A. बहुपद का मान / Value of the polynomial. At a zero, the polynomial value is (0). While reading a graph, look for points where (y=0).

Step 3

Exam Tip

शून्यक पर बहुपद का मान (0) होता है। ग्राफ पढ़ते समय (y=0) वाले बिंदु देखें।

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यदि \(A=2^4\times3^2\times5\) और \(B=2^2\times3\times5^3\), तो (A) और (B) का लघुत्तम समापवर्त्य उनके महत्तम समापवर्तक से कितने गुना है?

If \(A=2^4\times3^2\times5\) and \(B=2^2\times3\times5^3\), how many times is their LCM greater than their HCF?

Explanation opens after your attempt
Correct Answer

A. \(2^2\times3\times5^2\)

Step 1

Concept

HCF uses lower exponents and LCM uses higher exponents.

Step 2

Why this answer is correct

Exponent differences give \(2^{4-2}\times3^{2-1}\times5^{3-1}=2^2\times3\times5^2\).

Step 3

Exam Tip

For how many times, divide LCM by HCF. चरण 1: महत्तम समापवर्तक छोटी घातों से और लघुत्तम समापवर्त्य बड़ी घातों से बनेगा। चरण 2: अंतर घातें \(2^{4-2}\times3^{2-1}\times5^{3-1}=2^2\times3\times5^2\) देती हैं। चरण 3: कितने गुना वाले प्रश्न में लघुत्तम समापवर्त्य को महत्तम समापवर्तक से भाग दें।

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दो विलयनों के पीएच क्रमशः दो और छह हैं। पहले विलयन में हाइड्रोजन आयन की मात्रा दूसरे की तुलना में कितनी अधिक होगी?

Two solutions have pH values 2 and 6 respectively. How much greater is the hydrogen ion concentration in the first solution than in the second?

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Correct Answer

A. दस हजार गुनाTen thousand times

Step 1

Concept

A difference of one pH unit means a tenfold difference in hydrogen ion concentration.

Step 2

Why this answer is correct

The difference between pH 2 and pH 6 is four units.

Step 3

Exam Tip

So the first solution has ten thousand times more hydrogen ions. चरण 1: पीएच में एक इकाई का अंतर हाइड्रोजन आयन में दस गुना अंतर दिखाता है। चरण 2: दो और छह में चार इकाई का अंतर है। चरण 3: इसलिए पहले विलयन में हाइड्रोजन आयन दस हजार गुना अधिक होंगे।

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यदि (p(x)=x-2-6x+s) का एक शून्यक दूसरे से (2) अधिक है, तो (s) का मान क्या है?

If one zero of (p(x)=x-2-6x+s) is (2) more than the other, what is (s)?

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Correct Answer

A. (8)

Step 1

Concept

Let the zeroes be (t) and (t+2), then (2t+2=6) gives (t=2). The product is \(2\cdot4=8\), so (s=8).

Step 2

Why this answer is correct

The correct answer is A. (8). Let the zeroes be (t) and (t+2), then (2t+2=6) gives (t=2). The product is \(2\cdot4=8\), so (s=8).

Step 3

Exam Tip

शून्यक (t) और (t+2) मानें, तो (2t+2=6) से (t=2)। गुणनफल \(2\cdot4=8\), इसलिए (s=8)।

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यदि पीएच सात से कम है पर शून्य के बहुत निकट नहीं है तो विलयन के बारे में सबसे संतुलित निष्कर्ष क्या है?

If pH is less than 7 but not very close to zero, what is the most balanced conclusion about the solution?

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Correct Answer

A. विलयन अम्लीय है पर आवश्यक नहीं कि अत्यधिक दाहक होThe solution is acidic but not necessarily highly corrosive

Step 1

Concept

A pH below 7 means the solution is acidic.

Step 2

Why this answer is correct

Lower pH means higher acidity.

Step 3

Exam Tip

A pH only slightly below 7 may indicate mild acidity. चरण 1: पीएच सात से कम होने पर विलयन अम्लीय होता है। चरण 2: पीएच जितना कम होगा अम्लता उतनी अधिक होगी। चरण 3: सात से थोड़ा कम पीएच हल्की अम्लीयता दिखा सकता है।

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