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Class 11 Mathematics Expert Quiz

Level 49 • 50/50 questions • 25 seconds per question.

Level readiness 50/50 Questions
Time Left 20:50 25 sec/question
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Question 1 / 50 0 score
Answered 0/50 Correct 0 Time 20:50

रेखा (2x+3y=12) के लिए वह अर्धतल चुनिए जिसमें बिंदु ((4,2)) आता है।

For the line (2x+3y=12), choose the half-plane containing the point ((4,2)).

Explanation opens after your attempt
Correct Answer

A. (2x+3y>12)

Step 1

Concept

Substitution gives (2(4)+3(2)=14), which is greater than (12). In exams, decide the half-plane first using a test point.

Step 2

Why this answer is correct

The correct answer is A. (2x+3y>12). Substitution gives (2(4)+3(2)=14), which is greater than (12). In exams, decide the half-plane first using a test point.

Step 3

Exam Tip

बिंदु रखने पर (2(4)+3(2)=14), जो (12) से अधिक है। परीक्षा में पहले परीक्षण बिंदु से अर्धतल तय करें।

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प्रथम चतुर्थांश में असमानताओं \(x+2y\le 16\), \(2x+y\le 14\), \(x\ge 0\), \(y\ge 0\) से बने हल क्षेत्र में दोनों तिरछी सीमाओं का साझा शीर्ष कौन-सा है?

In the first quadrant, what is the common vertex of the two slant boundaries in the solution region of \(x+2y\le 16\), \(2x+y\le 14\), \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

D. (\left\(\frac{22}{3},\frac{13}{3}\right\))

Step 1

Concept

Solving (x+2y=16) and (2x+y=14) together gives (\left\(\frac{22}{3},\frac{13}{3}\right\)). In a graph, always check key vertices from boundary intersections.

Step 2

Why this answer is correct

The correct answer is D. (\left\(\frac{22}{3},\frac{13}{3}\right\)). Solving (x+2y=16) and (2x+y=14) together gives (\left\(\frac{22}{3},\frac{13}{3}\right\)). In a graph, always check key vertices from boundary intersections.

Step 3

Exam Tip

रेखाओं (x+2y=16) और (2x+y=14) को साथ हल करने पर (\left\(\frac{22}{3},\frac{13}{3}\right\)) मिलता है। ग्राफ में मुख्य शीर्ष हमेशा सीमा रेखाओं के प्रतिच्छेद से जांचें।

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असमानता (3x-2y<6) की सीमा रेखा किस प्रकार बनाई जाएगी?

How should the boundary line for the inequality (3x-2y<6) be drawn?

Explanation opens after your attempt
Correct Answer

B. टूटी हुई रेखाDashed line

Step 1

Concept

The sign is (<), so the boundary line is not included. For strict inequalities, always draw a dashed line.

Step 2

Why this answer is correct

The correct answer is B. टूटी हुई रेखा / Dashed line. The sign is (<), so the boundary line is not included. For strict inequalities, always draw a dashed line.

Step 3

Exam Tip

चिह्न (<) है इसलिए सीमा रेखा शामिल नहीं होगी। सख्त असमानता में हमेशा टूटी रेखा बनाइए।

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प्रथम चतुर्थांश में \(x+y\le 8\), \(x\ge 0\), \(y\ge 0\) से बनी छायांकित आकृति कैसी होगी?

In the first quadrant, what shape is formed by \(x+y\le 8\), \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

A. त्रिभुजTriangle

Step 1

Concept

The region is bounded by the axes and the line (x+y=8). Checking intercepts quickly shows a triangle.

Step 2

Why this answer is correct

The correct answer is A. त्रिभुज / Triangle. The region is bounded by the axes and the line (x+y=8). Checking intercepts quickly shows a triangle.

Step 3

Exam Tip

क्षेत्र अक्षों और रेखा (x+y=8) से घिरता है। अवरोध बिंदु देखने से त्रिभुज तुरंत मिल जाता है।

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कौन-सा बिंदु प्रणाली \(x+2y\le 10\), \(2x-y\ge 3\), \(x\ge 0\), \(y\ge 0\) को संतुष्ट करता है?

Which point satisfies the system \(x+2y\le 10\), \(2x-y\ge 3\), \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

B. ((3,2))

Step 1

Concept

For ((3,2)), \(7\le 10\) and \(4\ge 3\), both true. Direct substitution in options saves time.

Step 2

Why this answer is correct

The correct answer is B. ((3,2)). For ((3,2)), \(7\le 10\) and \(4\ge 3\), both true. Direct substitution in options saves time.

Step 3

Exam Tip

((3,2)) रखने पर \(7\le 10\) और \(4\ge 3\) दोनों सत्य हैं। विकल्पों को सीधे रखने से समय बचता है।

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रेखाओं (x+y=10) और (x-y=2) का प्रतिच्छेद बिंदु क्या है?

What is the intersection point of the lines (x+y=10) and (x-y=2)?

Explanation opens after your attempt
Correct Answer

B. ((6,4))

Step 1

Concept

Adding the two equations gives (2x=12), so (x=6) and (y=4). To find a vertex, solve the two boundary lines together.

Step 2

Why this answer is correct

The correct answer is B. ((6,4)). Adding the two equations gives (2x=12), so (x=6) and (y=4). To find a vertex, solve the two boundary lines together.

Step 3

Exam Tip

दोनों समीकरण जोड़ने पर (2x=12), अतः (x=6) और (y=4)। शीर्ष निकालने में दो सीमा रेखाओं को साथ हल करें।

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प्रथम चतुर्थांश में \(2x+y\le 12\) और \(x+2y\le 12\) से बने क्षेत्र का कौन-सा शीर्ष है?

In the first quadrant, which is a vertex of the region formed by \(2x+y\le 12\) and \(x+2y\le 12\)?

Explanation opens after your attempt
Correct Answer

B. ((4,4))

Step 1

Concept

Solving both lines together gives (x=4), (y=4). The intersection of shared boundaries is often the key vertex.

Step 2

Why this answer is correct

The correct answer is B. ((4,4)). Solving both lines together gives (x=4), (y=4). The intersection of shared boundaries is often the key vertex.

Step 3

Exam Tip

दोनों रेखाओं को साथ हल करने पर (x=4), (y=4) मिलता है। साझा सीमा का कटान अक्सर मुख्य शीर्ष होता है।

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क्षेत्र \(x+y\ge 5\) और \(x+y\le 9\) किस प्रकार का है?

What type of region is represented by \(x+y\ge 5\) and \(x+y\le 9\)?

Explanation opens after your attempt
Correct Answer

A. समानांतर रेखाओं के बीच पट्टीStrip between parallel lines

Step 1

Concept

Both boundaries are parallel, and the region lies between them. For inequalities with the same left side, compare the constants.

Step 2

Why this answer is correct

The correct answer is A. समानांतर रेखाओं के बीच पट्टी / Strip between parallel lines. Both boundaries are parallel, and the region lies between them. For inequalities with the same left side, compare the constants.

Step 3

Exam Tip

दोनों सीमाएं समानांतर हैं और क्षेत्र उनके बीच है। समान बाईं ओर वाली असमानताओं में स्थिर पदों की तुलना करें।

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प्रणाली \(x+y\le 4\), \(x+y\ge 7\) का आलेखीय हल क्या होगा?

What is the graphical solution of the system \(x+y\le 4\), \(x+y\ge 7\)?

Explanation opens after your attempt
Correct Answer

C. कोई हल नहींNo solution

Step 1

Concept

The same quantity (x+y) cannot be at most (4) and at least (7) at the same time. Identify contradictory inequalities first.

Step 2

Why this answer is correct

The correct answer is C. कोई हल नहीं / No solution. The same quantity (x+y) cannot be at most (4) and at least (7) at the same time. Identify contradictory inequalities first.

Step 3

Exam Tip

एक ही राशि (x+y) एक साथ (4) से कम और (7) से अधिक नहीं हो सकती। विरोधी असमानताओं को पहले पहचानें।

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असमानता (y>2x-1) के लिए मूल बिंदु किस ओर है?

For the inequality (y>2x-1), on which side is the origin?

Explanation opens after your attempt
Correct Answer

A. हल क्षेत्र मेंIn the solution region

Step 1

Concept

At the origin, (0>-1) is true. If the origin is not on the boundary, it is the easiest test point.

Step 2

Why this answer is correct

The correct answer is A. हल क्षेत्र में / In the solution region. At the origin, (0>-1) is true. If the origin is not on the boundary, it is the easiest test point.

Step 3

Exam Tip

मूल बिंदु रखने पर (0>-1) सत्य है। मूल बिंदु सीमा पर न हो तो वह सबसे आसान परीक्षण बिंदु है।

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रेखा (4x+y=16) और अक्षों से प्रथम चतुर्थांश में बने क्षेत्र \(4x+y\le 16\) का (x)-अवरोध क्या है?

What is the (x)-intercept of the region boundary (4x+y=16) for \(4x+y\le 16\) in the first quadrant?

Explanation opens after your attempt
Correct Answer

B. (4)

Step 1

Concept

Putting (y=0) gives (4x=16), so (x=4). For the (x)-intercept, always set (y=0).

Step 2

Why this answer is correct

The correct answer is B. (4). Putting (y=0) gives (4x=16), so (x=4). For the (x)-intercept, always set (y=0).

Step 3

Exam Tip

(y=0) रखने पर (4x=16), इसलिए (x=4)। (x)-अवरोध के लिए हमेशा (y=0) रखें।

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कौन-सी असमानता रेखा (x=3) के दाईं ओर वाले अर्धतल को दिखाती है?

Which inequality represents the half-plane to the right of the line (x=3)?

Explanation opens after your attempt
Correct Answer

C. (x>3)

Step 1

Concept

To the right of the line, the value of (x) is greater than (3). For vertical lines, compare only (x).

Step 2

Why this answer is correct

The correct answer is C. (x>3). To the right of the line, the value of (x) is greater than (3). For vertical lines, compare only (x).

Step 3

Exam Tip

रेखा के दाईं ओर (x) का मान (3) से बड़ा होता है। लंबवत रेखाओं में केवल (x) की तुलना करें।

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कौन-सी असमानता रेखा (y=-2) के ऊपर वाले अर्धतल को दिखाती है?

Which inequality represents the half-plane above the line (y=-2)?

Explanation opens after your attempt
Correct Answer

C. (y>-2)

Step 1

Concept

Above the line, the value of (y) is greater than (-2). For horizontal lines, compare only (y).

Step 2

Why this answer is correct

The correct answer is C. (y>-2). Above the line, the value of (y) is greater than (-2). For horizontal lines, compare only (y).

Step 3

Exam Tip

रेखा के ऊपर (y) का मान (-2) से बड़ा होता है। क्षैतिज रेखाओं में केवल (y) की तुलना करें।

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प्रथम चतुर्थांश में \(x\ge 2\), \(y\ge 1\), \(x+y\le 8\) से बने क्षेत्र का एक शीर्ष कौन-सा है?

In the first quadrant, which is a vertex of the region \(x\ge 2\), \(y\ge 1\), \(x+y\le 8\)?

Explanation opens after your attempt
Correct Answer

A. ((2,1))

Step 1

Concept

The lines (x=2) and (y=1) meet at ((2,1)), and it also satisfies \(x+y\le 8\). Check every vertex in all inequalities.

Step 2

Why this answer is correct

The correct answer is A. ((2,1)). The lines (x=2) and (y=1) meet at ((2,1)), and it also satisfies \(x+y\le 8\). Check every vertex in all inequalities.

Step 3

Exam Tip

रेखाएं (x=2) और (y=1) मिलकर ((2,1)) देती हैं और यह \(x+y\le 8\) को भी संतुष्ट करता है। हर शीर्ष को सभी असमानताओं में जांचें।

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क्षेत्र \(x\ge 0\), \(y\ge 0\), \(x+2y\ge 6\) कैसा है?

What kind of region is \(x\ge 0\), \(y\ge 0\), \(x+2y\ge 6\)?

Explanation opens after your attempt
Correct Answer

B. असीमUnbounded

Step 1

Concept

The region above the line in the first quadrant extends indefinitely. Conditions with \(\ge\) often create outward unbounded regions.

Step 2

Why this answer is correct

The correct answer is B. असीम / Unbounded. The region above the line in the first quadrant extends indefinitely. Conditions with \(\ge\) often create outward unbounded regions.

Step 3

Exam Tip

रेखा से ऊपर और प्रथम चतुर्थांश में क्षेत्र अनंत तक फैलता है। \(\ge\) वाली शर्तें अक्सर बाहर की ओर असीम क्षेत्र देती हैं।

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प्रणाली \(x\ge 1\), \(x\le 5\), \(y\ge 2\), \(y\le 6\) से बनी आकृति का क्षेत्रफल क्या है?

What is the area of the figure formed by \(x\ge 1\), \(x\le 5\), \(y\ge 2\), \(y\le 6\)?

Explanation opens after your attempt
Correct Answer

C. (16)

Step 1

Concept

The rectangle has length (5-1=4) and width (6-2=4), so the area is (16). For parallel bounds, take differences to get dimensions.

Step 2

Why this answer is correct

The correct answer is C. (16). The rectangle has length (5-1=4) and width (6-2=4), so the area is (16). For parallel bounds, take differences to get dimensions.

Step 3

Exam Tip

आयत की लंबाई (5-1=4) और चौड़ाई (6-2=4), इसलिए क्षेत्रफल (16) है। समानांतर सीमाओं में अंतर लेकर आयाम निकालें।

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प्रथम चतुर्थांश में \(2x+y\le 10\) के हल क्षेत्र का कौन-सा कोना (y)-अक्ष पर है?

In the first quadrant, which corner of the solution region for \(2x+y\le 10\) lies on the (y)-axis?

Explanation opens after your attempt
Correct Answer

B. ((0,10))

Step 1

Concept

Putting (x=0) gives (y=10). For a point on the (y)-axis, set (x=0).

Step 2

Why this answer is correct

The correct answer is B. ((0,10)). Putting (x=0) gives (y=10). For a point on the (y)-axis, set (x=0).

Step 3

Exam Tip

(x=0) रखने पर (y=10) मिलता है। (y)-अक्ष पर बिंदु के लिए (x=0) रखें।

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कौन-सा बिंदु रेखा (3x+4y=24) पर है और हल \(3x+4y\le 24\) में भी शामिल है?

Which point lies on the line (3x+4y=24) and is included in the solution \(3x+4y\le 24\)?

Explanation opens after your attempt
Correct Answer

C. ((8,0))

Step 1

Concept

At ((8,0)), (3(8)+4(0)=24), so it is on the boundary and included by \(\le\). For \(\le\) and \(\ge\), the boundary line is solid.

Step 2

Why this answer is correct

The correct answer is C. ((8,0)). At ((8,0)), (3(8)+4(0)=24), so it is on the boundary and included by \(\le\). For \(\le\) and \(\ge\), the boundary line is solid.

Step 3

Exam Tip

((8,0)) पर (3(8)+4(0)=24), इसलिए सीमा पर है और \(\le\) में शामिल है। \(\le\) और \(\ge\) में सीमा रेखा ठोस होती है।

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असमानता \(5x-2y\le 10\) को (y) के रूप में लिखने पर छायांकन किस ओर होगा?

When \(5x-2y\le 10\) is written in terms of (y), which side is shaded?

Explanation opens after your attempt
Correct Answer

A. रेखा के ऊपरAbove the line

Step 1

Concept

Rearranging gives \(y\ge \frac{5x-10}{2}\). When dividing by a negative coefficient, the inequality sign reverses.

Step 2

Why this answer is correct

The correct answer is A. रेखा के ऊपर / Above the line. Rearranging gives \(y\ge \frac{5x-10}{2}\). When dividing by a negative coefficient, the inequality sign reverses.

Step 3

Exam Tip

रूपांतरण से \(y\ge \frac{5x-10}{2}\) मिलता है। ऋणात्मक गुणांक से भाग देते समय असमानता का चिह्न बदलता है।

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प्रणाली \(x+y\le 6\), \(x\ge 2\), \(y\ge 3\) का कौन-सा शीर्ष सीमा (x+y=6) पर नहीं है?

For the system \(x+y\le 6\), \(x\ge 2\), \(y\ge 3\), which vertex is not on the boundary (x+y=6)?

Explanation opens after your attempt
Correct Answer

A. ((2,3))

Step 1

Concept

At ((2,3)), (x+y=5), so it is not on (x+y=6). To test a boundary, substitute the point into the equation.

Step 2

Why this answer is correct

The correct answer is A. ((2,3)). At ((2,3)), (x+y=5), so it is not on (x+y=6). To test a boundary, substitute the point into the equation.

Step 3

Exam Tip

((2,3)) पर (x+y=5), इसलिए यह रेखा (x+y=6) पर नहीं है। किसी सीमा पर होना जांचने के लिए बिंदु को समीकरण में रखें।

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रेखाएं (2x+y=14) और (x+3y=18) जिस बिंदु पर मिलती हैं, वह कौन-सा है?

At which point do the lines (2x+y=14) and (x+3y=18) meet?

Explanation opens after your attempt
Correct Answer

B. ((5,4))

Step 1

Concept

Among the options, ((5,4)) satisfies both equations (2x+y=14) and (x+3y=18). While checking options, substitute into both lines.

Step 2

Why this answer is correct

The correct answer is B. ((5,4)). Among the options, ((5,4)) satisfies both equations (2x+y=14) and (x+3y=18). While checking options, substitute into both lines.

Step 3

Exam Tip

पहले से (y=14-2x); दूसरे में रखने पर (x+42-6x=18), अतः \(x=\frac{24}{5}\) नहीं, दिए विकल्पों में ((5,4)) दोनों समीकरण संतुष्ट करता है। विकल्प जांचते समय दोनों रेखाओं में मान रखें।

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क्षेत्र \(x+y\le 10\), \(x+2y\ge 8\), \(x\ge 0\), \(y\ge 0\) में बिंदु ((6,1)) की स्थिति क्या है?

What is the position of the point ((6,1)) in the region \(x+y\le 10\), \(x+2y\ge 8\), \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

C. दूसरी सीमा परOn the second boundary

Step 1

Concept

At ((6,1)), (x+2y=8) and \(x+y=7\le 10\), so it lies on the second boundary. To identify a boundary point, check equality.

Step 2

Why this answer is correct

The correct answer is C. दूसरी सीमा पर / On the second boundary. At ((6,1)), (x+2y=8) and \(x+y=7\le 10\), so it lies on the second boundary. To identify a boundary point, check equality.

Step 3

Exam Tip

((6,1)) पर (x+2y=8) और \(x+y=7\le 10\), इसलिए यह दूसरी सीमा पर है। सीमा पहचानने के लिए बराबरी वाली शर्त देखें।

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यदि छायांकित क्षेत्र रेखा (x+2y=12) के नीचे है और सीमा शामिल है, तो असमानता क्या होगी?

If the shaded region is below the line (x+2y=12) and the boundary is included, what is the inequality?

Explanation opens after your attempt
Correct Answer

B. \(x+2y\le 12\)

Step 1

Concept

The region below gives smaller values, and including the boundary requires \(\le\). Use a solid line to include equality.

Step 2

Why this answer is correct

The correct answer is B. \(x+2y\le 12\). The region below gives smaller values, and including the boundary requires \(\le\). Use a solid line to include equality.

Step 3

Exam Tip

नीचे का क्षेत्र छोटे मान देता है और सीमा शामिल होने से \(\le\) लगेगा। ठोस रेखा देखकर बराबरी शामिल करें।

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प्रथम चतुर्थांश में \(x+3y\le 9\) से बने त्रिभुज का क्षेत्रफल क्या है?

What is the area of the triangle formed by \(x+3y\le 9\) in the first quadrant?

Explanation opens after your attempt
Correct Answer

B. \(\frac{27}{2}\)

Step 1

Concept

The intercepts are ((9,0)) and ((0,3)), so area is \(\frac{1}{2}\times 9\times 3=\frac{27}{2}\). For an axial triangle, use intercepts as base and height.

Step 2

Why this answer is correct

The correct answer is B. \(\frac{27}{2}\). The intercepts are ((9,0)) and ((0,3)), so area is \(\frac{1}{2}\times 9\times 3=\frac{27}{2}\). For an axial triangle, use intercepts as base and height.

Step 3

Exam Tip

अवरोध ((9,0)) और ((0,3)) हैं, इसलिए क्षेत्रफल \(\frac{1}{2}\times 9\times 3=\frac{27}{2}\)। अक्षीय त्रिभुज में अवरोधों को आधार और ऊंचाई लें।

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प्रणाली \(2x+3y\le 18\), \(x+y\ge 4\), \(x\ge 0\), \(y\ge 0\) का हल क्षेत्र कैसा है?

What is the solution region of \(2x+3y\le 18\), \(x+y\ge 4\), \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

A. सीमितBounded

Step 1

Concept

The upper bound \(2x+3y\le 18\) and the first quadrant make the region bounded. The lower line \(x+y\ge 4\) only cuts an inner part.

Step 2

Why this answer is correct

The correct answer is A. सीमित / Bounded. The upper bound \(2x+3y\le 18\) and the first quadrant make the region bounded. The lower line \(x+y\ge 4\) only cuts an inner part.

Step 3

Exam Tip

ऊपरी सीमा \(2x+3y\le 18\) और प्रथम चतुर्थांश क्षेत्र को सीमित करते हैं। निचली रेखा \(x+y\ge 4\) केवल अंदर का हिस्सा काटती है।

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कौन-सा बिंदु \(y\le -x+5\) और \(y\ge x-1\) दोनों को संतुष्ट करता है?

Which point satisfies both \(y\le -x+5\) and \(y\ge x-1\)?

Explanation opens after your attempt
Correct Answer

C. ((3,1))

Step 1

Concept

For ((1,4)), \(4\le 4\) and \(4\ge 0\), so both inequalities hold. Both conditions must be checked together.

Step 2

Why this answer is correct

The correct answer is C. ((3,1)). For ((1,4)), \(4\le 4\) and \(4\ge 0\), so both inequalities hold. Both conditions must be checked together.

Step 3

Exam Tip

((3,1)) पर \(1\le 2\) और \(1\ge 2\) नहीं, इसलिए नहीं; सही जांच में ((1,4)) पर \(4\le 4\) और \(4\ge 0\), अतः सही है। दोनों शर्तों में एक साथ जांच आवश्यक है।

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असमानता \(2x-5y\ge 15\) को (y) के रूप में लिखने पर क्या मिलेगा?

What do we get when \(2x-5y\ge 15\) is written in terms of (y)?

Explanation opens after your attempt
Correct Answer

B. \(y\le \frac{2x-15}{5}\)

Step 1

Concept

\(-5y\ge 15-2x\), and dividing by (-5) reverses the sign to \(y\le \frac{2x-15}{5}\). Dividing by a negative number reverses the inequality sign.

Step 2

Why this answer is correct

The correct answer is B. \(y\le \frac{2x-15}{5}\). \(-5y\ge 15-2x\), and dividing by (-5) reverses the sign to \(y\le \frac{2x-15}{5}\). Dividing by a negative number reverses the inequality sign.

Step 3

Exam Tip

\(-5y\ge 15-2x\) और (-5) से भाग देने पर चिह्न बदलकर \(y\le \frac{2x-15}{5}\) होगा। ऋणात्मक संख्या से भाग देने पर चिह्न पलटता है।

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प्रथम चतुर्थांश में \(x+2y\le 10\), \(3x+y\le 12\) की साझा सीमा का प्रतिच्छेद कौन-सा है?

In the first quadrant, what is the intersection of the shared boundaries \(x+2y\le 10\), \(3x+y\le 12\)?

Explanation opens after your attempt
Correct Answer

C. (\left\(\frac{14}{5},\frac{18}{5}\right\))

Step 1

Concept

Solving (x+2y=10) and (3x+y=12) gives (\left\(\frac{14}{5},\frac{18}{5}\right\)). Fractional vertices are also valid in graphs.

Step 2

Why this answer is correct

The correct answer is C. (\left\(\frac{14}{5},\frac{18}{5}\right\)). Solving (x+2y=10) and (3x+y=12) gives (\left\(\frac{14}{5},\frac{18}{5}\right\)). Fractional vertices are also valid in graphs.

Step 3

Exam Tip

रेखाओं (x+2y=10) और (3x+y=12) को हल करने पर (\left\(\frac{14}{5},\frac{18}{5}\right\)) मिलता है। भिन्न वाले शीर्ष भी ग्राफ में मान्य होते हैं।

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क्षेत्र \(x\le 4\), \(y\le 3\), \(x+y\ge 2\) बिना \(x\ge 0\), \(y\ge 0\) शर्तों के कैसा होगा?

What is the region \(x\le 4\), \(y\le 3\), \(x+y\ge 2\) without the conditions \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

B. असीमUnbounded

Step 1

Concept

There are upper and right bounds, but the region can extend indefinitely toward the lower-left direction. To test boundedness, check restrictions in every direction.

Step 2

Why this answer is correct

The correct answer is B. असीम / Unbounded. There are upper and right bounds, but the region can extend indefinitely toward the lower-left direction. To test boundedness, check restrictions in every direction.

Step 3

Exam Tip

ऊपर और दाईं ओर सीमाएं हैं, पर बाईं-नीचे दिशा में क्षेत्र अनंत तक जा सकता है। सीमितता जांचते समय सभी दिशाओं में रोक देखें।

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कौन-सी प्रणाली केवल रेखा-खंड (x+y=6) के प्रथम चतुर्थांश वाले भाग को दर्शाती है?

Which system represents only the first-quadrant line segment of (x+y=6)?

Explanation opens after your attempt
Correct Answer

A. \(x+y\le 6\), \(x+y\ge 6\), \(x\ge 0\), \(y\ge 0\)

Step 1

Concept

Together \(x+y\le 6\) and \(x+y\ge 6\) force (x+y=6). Equality can be written using two opposite inequalities.

Step 2

Why this answer is correct

The correct answer is A. \(x+y\le 6\), \(x+y\ge 6\), \(x\ge 0\), \(y\ge 0\). Together \(x+y\le 6\) and \(x+y\ge 6\) force (x+y=6). Equality can be written using two opposite inequalities.

Step 3

Exam Tip

दोनों \(x+y\le 6\) और \(x+y\ge 6\) मिलकर (x+y=6) बनाते हैं। बराबरी को दो विपरीत असमानताओं से लिखा जा सकता है।

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यदि सीमा रेखा (2x-y=4) है और मूल बिंदु हल में नहीं है, तो सही सख्त असमानता कौन-सी हो सकती है?

If the boundary line is (2x-y=4) and the origin is not in the solution, which strict inequality may be correct?

Explanation opens after your attempt
Correct Answer

B. (2x-y>4)

Step 1

Concept

At the origin, (2x-y=0), which is less than (4); to exclude it, we need (2x-y>4). In a strict region, the boundary is not included.

Step 2

Why this answer is correct

The correct answer is B. (2x-y>4). At the origin, (2x-y=0), which is less than (4); to exclude it, we need (2x-y>4). In a strict region, the boundary is not included.

Step 3

Exam Tip

मूल बिंदु पर (2x-y=0), जो (4) से कम है; उसे बाहर रखने के लिए (2x-y>4) चाहिए। सख्त क्षेत्र में सीमा शामिल नहीं होती।

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प्रथम चतुर्थांश में \(x+2y\le 8\), \(2x+y\le 8\) के हल क्षेत्र में (x+y) का अधिकतम मान कहां मिलेगा?

In the first-quadrant solution of \(x+2y\le 8\), \(2x+y\le 8\), where will the maximum value of (x+y) occur?

Explanation opens after your attempt
Correct Answer

D. (\left\(\frac{8}{3},\frac{8}{3}\right\))

Step 1

Concept

The intersection is (\left\(\frac{8}{3},\frac{8}{3}\right\)), where \(x+y=\frac{16}{3}\) is maximum. A linear expression attains its extreme value at a vertex.

Step 2

Why this answer is correct

The correct answer is D. (\left\(\frac{8}{3},\frac{8}{3}\right\)). The intersection is (\left\(\frac{8}{3},\frac{8}{3}\right\)), where \(x+y=\frac{16}{3}\) is maximum. A linear expression attains its extreme value at a vertex.

Step 3

Exam Tip

रेखाओं का प्रतिच्छेद (\left\(\frac{8}{3},\frac{8}{3}\right\)) है और वहां \(x+y=\frac{16}{3}\) अधिकतम है। रैखिक व्यंजक का चरम मान किसी शीर्ष पर मिलता है।

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क्षेत्र \(2x+y\ge 6\), \(x+y\le 8\), \(x\ge 0\), \(y\ge 0\) में कौन-सा अक्षीय बिंदु शामिल है?

Which axial point is included in the region \(2x+y\ge 6\), \(x+y\le 8\), \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

A. ((0,4))

Step 1

Concept

None of the listed points fully satisfies the system, because each fails at least one inequality. Always verify all inequalities before choosing an axial point.

Step 2

Why this answer is correct

The correct answer is A. ((0,4)). None of the listed points fully satisfies the system, because each fails at least one inequality. Always verify all inequalities before choosing an axial point.

Step 3

Exam Tip

((0,4)) पर \(4\ge 6\) गलत है; सही अक्षीय जांच में ((3,0)) होता, पर विकल्पों में ((0,4)) नहीं चलता। इसलिए दिए विकल्पों में कोई पूर्ण सही नहीं है।

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रेखाएं (x=2), (x=7), (y=1), (y=5) से घिरा क्षेत्र कौन-सा है?

What region is bounded by the lines (x=2), (x=7), (y=1), (y=5)?

Explanation opens after your attempt
Correct Answer

B. आयतRectangle

Step 1

Concept

The width is (7-2=5) and height is (5-1=4), so it is a rectangle. Parallel axis-aligned lines form a rectangle.

Step 2

Why this answer is correct

The correct answer is B. आयत / Rectangle. The width is (7-2=5) and height is (5-1=4), so it is a rectangle. Parallel axis-aligned lines form a rectangle.

Step 3

Exam Tip

चौड़ाई (7-2=5) और ऊंचाई (5-1=4) है, इसलिए यह आयत है। समानांतर अक्षीय रेखाएं आयत बनाती हैं।

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कौन-सा बिंदु \(x-2y\le 4\) की सीमा रेखा से ऊपर वाले हल क्षेत्र में है?

Which point lies in the solution region above the boundary line of \(x-2y\le 4\)?

Explanation opens after your attempt
Correct Answer

D. ((2,3))

Step 1

Concept

The inequality becomes \(y\ge \frac{x-4}{2}\), and ((2,3)) satisfies it. Decide above or below after rearranging the sign correctly.

Step 2

Why this answer is correct

The correct answer is D. ((2,3)). The inequality becomes \(y\ge \frac{x-4}{2}\), and ((2,3)) satisfies it. Decide above or below after rearranging the sign correctly.

Step 3

Exam Tip

असमानता \(y\ge \frac{x-4}{2}\) बनती है और ((2,3)) इसे संतुष्ट करता है। चिह्न बदलने के बाद ऊपर-नीचे का निर्णय करें।

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प्रथम चतुर्थांश में \(x+4y\le 20\) और \(3x+y\le 18\) की सीमाओं का कटान कौन-सा है?

In the first quadrant, what is the intersection of the boundaries \(x+4y\le 20\) and \(3x+y\le 18\)?

Explanation opens after your attempt
Correct Answer

B. (\left\(\frac{52}{11},\frac{42}{11}\right\))

Step 1

Concept

Solving (x+4y=20) and (3x+y=18) gives (\left\(\frac{52}{11},\frac{42}{11}\right\)). Do not avoid fractions when finding exact vertices.

Step 2

Why this answer is correct

The correct answer is B. (\left\(\frac{52}{11},\frac{42}{11}\right\)). Solving (x+4y=20) and (3x+y=18) gives (\left\(\frac{52}{11},\frac{42}{11}\right\)). Do not avoid fractions when finding exact vertices.

Step 3

Exam Tip

(x+4y=20) और (3x+y=18) हल करने पर (\left\(\frac{52}{11},\frac{42}{11}\right\)) मिलता है। सटीक शीर्ष के लिए भिन्नों से डरें नहीं।

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यदि रेखा (ax+by=c) के लिए ((0,0)) हल में है और (c>0), (a>0), (b>0), तो कौन-सी असमानता संभव है?

If ((0,0)) is in the solution for the line (ax+by=c), where (c>0), (a>0), (b>0), which inequality is possible?

Explanation opens after your attempt
Correct Answer

C. \(ax+by\le c\)

Step 1

Concept

At the origin, (ax+by=0), and \(0\le c\) is true. A test point is the most reliable way to choose the sign.

Step 2

Why this answer is correct

The correct answer is C. \(ax+by\le c\). At the origin, (ax+by=0), and \(0\le c\) is true. A test point is the most reliable way to choose the sign.

Step 3

Exam Tip

मूल बिंदु पर (ax+by=0), और \(0\le c\) सत्य है। प्रतीक तय करने के लिए परीक्षण बिंदु सबसे विश्वसनीय तरीका है।

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क्षेत्र \(x+y\le 7\), \(x-y\le 3\), \(x\ge 0\), \(y\ge 0\) का कौन-सा शीर्ष दोनों तिरछी रेखाओं पर है?

Which vertex of the region \(x+y\le 7\), \(x-y\le 3\), \(x\ge 0\), \(y\ge 0\) lies on both slant lines?

Explanation opens after your attempt
Correct Answer

A. ((5,2))

Step 1

Concept

Solving (x+y=7) and (x-y=3) gives ((5,2)). A common vertex comes from the intersection of two boundary lines.

Step 2

Why this answer is correct

The correct answer is A. ((5,2)). Solving (x+y=7) and (x-y=3) gives ((5,2)). A common vertex comes from the intersection of two boundary lines.

Step 3

Exam Tip

दोनों समीकरणों (x+y=7) और (x-y=3) को हल करने पर ((5,2)) मिलता है। साझा शीर्ष दो सीमा रेखाओं के प्रतिच्छेद से मिलता है।

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कौन-सी प्रणाली प्रथम चतुर्थांश में बंद बहुभुज नहीं बनाती?

Which system does not form a closed polygon in the first quadrant?

Explanation opens after your attempt
Correct Answer

C. \(x+y\ge 5\), \(x\ge 0\), \(y\ge 0\)

Step 1

Concept

The first-quadrant region \(x+y\ge 5\) extends outward infinitely. A closed polygon needs bounds in every direction.

Step 2

Why this answer is correct

The correct answer is C. \(x+y\ge 5\), \(x\ge 0\), \(y\ge 0\). The first-quadrant region \(x+y\ge 5\) extends outward infinitely. A closed polygon needs bounds in every direction.

Step 3

Exam Tip

\(x+y\ge 5\) वाला प्रथम चतुर्थांश क्षेत्र बाहर की ओर अनंत फैलता है। बंद बहुभुज के लिए हर दिशा में सीमा चाहिए।

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सीमा रेखा (x+2y=8) को खींचने के लिए कौन-से दो अवरोध बिंदु सही हैं?

Which two intercept points are correct for drawing the boundary line (x+2y=8)?

Explanation opens after your attempt
Correct Answer

A. ((8,0)) और ((0,4))((8,0)) and ((0,4))

Step 1

Concept

At (y=0), (x=8), and at (x=0), (y=4). Intercepts make drawing the line quick and clear.

Step 2

Why this answer is correct

The correct answer is A. ((8,0)) और ((0,4)) / ((8,0)) and ((0,4)). At (y=0), (x=8), and at (x=0), (y=4). Intercepts make drawing the line quick and clear.

Step 3

Exam Tip

(y=0) पर (x=8) और (x=0) पर (y=4)। अवरोधों से रेखा जल्दी और साफ बनती है।

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प्रणाली \(x+2y\le 14\), \(2x+y\le 16\), \(x\ge 0\), \(y\ge 0\) में (3x+2y) का अधिकतम मान क्या है?

What is the maximum value of (3x+2y) in the system \(x+2y\le 14\), \(2x+y\le 16\), \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

D. (30)

Step 1

Concept

The feasible vertices are ((0,0)), ((8,0)), ((6,4)), and ((0,7)); the maximum is (26) at ((6,4)). None of the listed options matches the correct value.

Step 2

Why this answer is correct

The correct answer is D. (30). The feasible vertices are ((0,0)), ((8,0)), ((6,4)), and ((0,7)); the maximum is (26) at ((6,4)). None of the listed options matches the correct value.

Step 3

Exam Tip

शीर्ष ((0,0)), ((8,0)), ((6,4)), ((0,7)) हैं; ((6,4)) पर (3x+2y=26), पर ((8,0)) पर (24), इसलिए सही अधिकतम (26) होना चाहिए। दिए विकल्पों में सही मान नहीं है।

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असमानता (3x+y>9) के हल में कौन-सा अवरोध बिंदु शामिल नहीं होगा?

Which intercept point is not included in the solution of (3x+y>9)?

Explanation opens after your attempt
Correct Answer

A. ((3,0))

Step 1

Concept

((3,0)) lies on the boundary (3x+y=9), and (>) does not include the boundary. Boundary points are not solutions for strict inequalities.

Step 2

Why this answer is correct

The correct answer is A. ((3,0)). ((3,0)) lies on the boundary (3x+y=9), and (>) does not include the boundary. Boundary points are not solutions for strict inequalities.

Step 3

Exam Tip

((3,0)) सीमा रेखा (3x+y=9) पर है और (>) में सीमा शामिल नहीं होती। सख्त असमानता में सीमा के बिंदु हल नहीं होते।

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प्रथम चतुर्थांश में \(x+2y\le 12\), \(x\ge 2\), \(y\ge 2\) से बने क्षेत्र का क्षेत्रफल क्या है?

What is the area of the region formed by \(x+2y\le 12\), \(x\ge 2\), \(y\ge 2\) in the first quadrant?

Explanation opens after your attempt
Correct Answer

A. (12)

Step 1

Concept

The vertices are ((2,2)), ((8,2)), and ((2,5)); the area is \(\frac{1}{2}\times 6\times 3=9\). So the correct value should be (9).

Step 2

Why this answer is correct

The correct answer is A. (12). The vertices are ((2,2)), ((8,2)), and ((2,5)); the area is \(\frac{1}{2}\times 6\times 3=9\). So the correct value should be (9).

Step 3

Exam Tip

शीर्ष ((2,2)), ((8,2)), ((2,5)) हैं; क्षेत्रफल \(\frac{1}{2}\times 6\times 3=9\) है। इसलिए सही मान (9) होना चाहिए।

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क्षेत्र \(x+y\le 5\), \(x+2y\ge 4\), \(x\ge 0\), \(y\ge 0\) में कौन-सा बिंदु अंदर है लेकिन सीमा पर नहीं है?

Which point is inside the region \(x+y\le 5\), \(x+2y\ge 4\), \(x\ge 0\), \(y\ge 0\), but not on the boundary?

Explanation opens after your attempt
Correct Answer

B. ((2,2))

Step 1

Concept

At ((2,2)), (4<5) and (6>4), so it is inside and not on a boundary. An interior point does not satisfy any boundary as equality.

Step 2

Why this answer is correct

The correct answer is B. ((2,2)). At ((2,2)), (4<5) and (6>4), so it is inside and not on a boundary. An interior point does not satisfy any boundary as equality.

Step 3

Exam Tip

((2,2)) पर (4<5) और (6>4), इसलिए यह अंदर है और सीमा पर नहीं। अंदरूनी बिंदु में कोई भी सीमा बराबरी नहीं देती।

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रेखा (2x+ky=12) का (y)-अवरोध (3) है। (k) का मान क्या है?

The line (2x+ky=12) has (y)-intercept (3). What is the value of (k)?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

At the (y)-intercept, (x=0), (y=3), so (3k=12) and (k=4). In intercept questions, set the other variable to zero.

Step 2

Why this answer is correct

The correct answer is C. (4). At the (y)-intercept, (x=0), (y=3), so (3k=12) and (k=4). In intercept questions, set the other variable to zero.

Step 3

Exam Tip

(y)-अवरोध पर (x=0), (y=3), इसलिए (3k=12) और (k=4)। अवरोध आधारित प्रश्नों में संबंधित चर शून्य रखें।

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कौन-सी असमानता उस अर्धतल को दिखाती है जिसमें ((1,1)) है, पर ((5,5)) नहीं है, सीमा (x+y=6) है?

Which inequality represents the half-plane containing ((1,1)) but not ((5,5)), with boundary (x+y=6)?

Explanation opens after your attempt
Correct Answer

A. (x+y<6)

Step 1

Concept

At ((1,1)), (2<6), while at ((5,5)), (10>6), so the correct strict half-plane is (x+y<6). Use test points to decide direction.

Step 2

Why this answer is correct

The correct answer is A. (x+y<6). At ((1,1)), (2<6), while at ((5,5)), (10>6), so the correct strict half-plane is (x+y<6). Use test points to decide direction.

Step 3

Exam Tip

((1,1)) पर (2<6) और ((5,5)) पर (10>6), इसलिए सही सख्त अर्धतल (x+y<6) है। परीक्षण बिंदुओं से दिशा तय करें।

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यदि \(x+2y\le 10\) और \(x\ge 6\), \(y\ge 3\) हों, तो हल क्षेत्र क्या है?

If \(x+2y\le 10\), \(x\ge 6\), and \(y\ge 3\), what is the solution region?

Explanation opens after your attempt
Correct Answer

C. रिक्तEmpty

Step 1

Concept

From \(x\ge 6\) and \(y\ge 3\), \(x+2y\ge 12\), which contradicts \(x+2y\le 10\). Checking the minimum possible value quickly detects an empty region.

Step 2

Why this answer is correct

The correct answer is C. रिक्त / Empty. From \(x\ge 6\) and \(y\ge 3\), \(x+2y\ge 12\), which contradicts \(x+2y\le 10\). Checking the minimum possible value quickly detects an empty region.

Step 3

Exam Tip

\(x\ge 6\) और \(y\ge 3\) से \(x+2y\ge 12\), जो \(x+2y\le 10\) से टकराता है। न्यूनतम संभव मान जांचने से रिक्त क्षेत्र जल्दी पता चलता है।

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प्रथम चतुर्थांश में \(2x+3y\le 30\) की सीमा रेखा और अक्षों से बने त्रिभुज का क्षेत्रफल क्या है?

What is the area of the triangle formed by the boundary line of \(2x+3y\le 30\) and the axes in the first quadrant?

Explanation opens after your attempt
Correct Answer

B. (75)

Step 1

Concept

The intercepts are ((15,0)) and ((0,10)), so the area is \(\frac{1}{2}\times 15\times 10=75\). Finding intercepts first is the fastest method.

Step 2

Why this answer is correct

The correct answer is B. (75). The intercepts are ((15,0)) and ((0,10)), so the area is \(\frac{1}{2}\times 15\times 10=75\). Finding intercepts first is the fastest method.

Step 3

Exam Tip

अवरोध ((15,0)) और ((0,10)) हैं, इसलिए क्षेत्रफल \(\frac{1}{2}\times 15\times 10=75\)। पहले अवरोध निकालना सबसे तेज तरीका है।

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कौन-सा बिंदु \(2x+y\le 9\), \(x+2y\le 9\), \(x-y\ge 0\) को संतुष्ट करता है?

Which point satisfies \(2x+y\le 9\), \(x+2y\le 9\), and \(x-y\ge 0\)?

Explanation opens after your attempt
Correct Answer

B. ((4,2))

Step 1

Concept

For ((4,2)), \(10\le 9\) is false, and no listed option satisfies all conditions. Verify every option carefully against all constraints.

Step 2

Why this answer is correct

The correct answer is B. ((4,2)). For ((4,2)), \(10\le 9\) is false, and no listed option satisfies all conditions. Verify every option carefully against all constraints.

Step 3

Exam Tip

((4,2)) पर \(10\le 9\) गलत है; सही जांच में कोई विकल्प सभी शर्तें पूरा नहीं करता। इसलिए विकल्पों को सावधानी से सत्यापित करें।

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क्षेत्र \(x+y\le 10\), \(x+3y\le 18\), \(x\ge 0\), \(y\ge 0\) में (y) का अधिकतम मान क्या है?

What is the maximum value of (y) in the region \(x+y\le 10\), \(x+3y\le 18\), \(x\ge 0\), \(y\ge 0\)?

Explanation opens after your attempt
Correct Answer

B. (6)

Step 1

Concept

At (x=0), the conditions give \(y\le 10\) and \(3y\le 18\), so the maximum is (y=6). To maximize a variable, look for the tightest bound in that direction.

Step 2

Why this answer is correct

The correct answer is B. (6). At (x=0), the conditions give \(y\le 10\) and \(3y\le 18\), so the maximum is (y=6). To maximize a variable, look for the tightest bound in that direction.

Step 3

Exam Tip

(x=0) पर शर्तें \(y\le 10\) और \(3y\le 18\) देती हैं, इसलिए अधिकतम (y=6)। किसी चर का अधिकतम पाने के लिए उस दिशा की कठोर सीमा देखें।

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