Concept-wise Practice

class 11 MCQ Questions for Class 11

class 11 se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

2918 questions tagged with class 11.

ग्राफीय रूप से (x+2y<6) और \(x+2y\leq 6\) में मुख्य अंतर क्या है?

Graphically, what is the main difference between (x+2y<6) and \(x+2y\leq 6\)?

Explanation opens after your attempt
Correct Answer

B. दूसरी असमानता सीमा रेखा (x+2y=6) को शामिल करती हैThe second inequality includes the boundary line (x+2y=6)

Step 1

Concept

Both have the same side, but \(\leq\) includes the boundary line. Exam tip: The solid versus dashed line difference earns marks in graph questions.

Step 2

Why this answer is correct

The correct answer is B. दूसरी असमानता सीमा रेखा (x+2y=6) को शामिल करती है / The second inequality includes the boundary line (x+2y=6). Both have the same side, but \(\leq\) includes the boundary line. Exam tip: The solid versus dashed line difference earns marks in graph questions.

Step 3

Exam Tip

दोनों का पक्ष समान है लेकिन \(\leq\) में सीमा रेखा शामिल होती है। परीक्षा सुझाव: ग्राफ में ठोस और टूटी रेखा का अंतर अंक दिलाता है।

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तंत्र \(x+y\leq 5\), \(x\geq -1\), \(y\geq -2\) से बने क्षेत्र का क्षेत्रफल क्या है?

What is the area of the region formed by \(x+y\leq 5\), \(x\geq -1\), \(y\geq -2\)?

Explanation opens after your attempt
Correct Answer

A. (32)

Step 1

Concept

The vertices are ((-1,-2)), ((-1,6)), and ((7,-2)), with perpendicular sides (8) and (8). Exam tip: Find intercepts carefully when bounds are negative.

Step 2

Why this answer is correct

The correct answer is A. (32). The vertices are ((-1,-2)), ((-1,6)), and ((7,-2)), with perpendicular sides (8) and (8). Exam tip: Find intercepts carefully when bounds are negative.

Step 3

Exam Tip

शीर्ष ((-1,-2)), ((-1,6)), ((7,-2)) हैं और लंबवत भुजाएँ (8), (8) हैं। परीक्षा सुझाव: ऋणात्मक सीमाओं में कटान सावधानी से निकालें।

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असमानता \(x-y\geq 2\) के ग्राफ के लिए सही कथन चुनिए।

Choose the correct statement for the graph of \(x-y\geq 2\).

Explanation opens after your attempt
Correct Answer

C. \(y\leq x-2\), सीमा सहित और मूल बिंदु से दूर\(y\leq x-2\), with boundary and away from origin

Step 1

Concept

The inequality \(x-y\geq 2\) gives \(y\leq x-2\), and ((0,0)) makes it false. Exam tip: Pay close attention to the sign of (y).

Step 2

Why this answer is correct

The correct answer is C. \(y\leq x-2\), सीमा सहित और मूल बिंदु से दूर / \(y\leq x-2\), with boundary and away from origin. The inequality \(x-y\geq 2\) gives \(y\leq x-2\), and ((0,0)) makes it false. Exam tip: Pay close attention to the sign of (y).

Step 3

Exam Tip

\(x-y\geq 2\) से \(y\leq x-2\) मिलता है और ((0,0)) इसे असत्य करता है। परीक्षा सुझाव: (y) के चिन्ह पर विशेष ध्यान दें।

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प्रथम चतुर्थांश में \(2x+y\geq 6\), \(x+2y\geq 6\) के सामान्य क्षेत्र का मूल बिंदु के सबसे निकट वाला कोना कौन-सा है?

In the first quadrant, which corner of the common region of \(2x+y\geq 6\), \(x+2y\geq 6\) is nearest to the origin?

Explanation opens after your attempt
Correct Answer

B. ((2,2))

Step 1

Concept

The two boundary lines meet at ((2,2)), which is the nearest corner of the outer unbounded region. Exam tip: In two \(\geq\) regions, the intersection point is often crucial.

Step 2

Why this answer is correct

The correct answer is B. ((2,2)). The two boundary lines meet at ((2,2)), which is the nearest corner of the outer unbounded region. Exam tip: In two \(\geq\) regions, the intersection point is often crucial.

Step 3

Exam Tip

दोनों सीमा रेखाएँ ((2,2)) पर मिलती हैं और वही बाहरी असीमित क्षेत्र का निकटतम कोना है। परीक्षा सुझाव: दो \(\geq\) क्षेत्रों में प्रतिच्छेद बिंदु अक्सर महत्वपूर्ण होता है।

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प्रथम चतुर्थांश में \(x+4y\leq 16\) के हल त्रिभुज का मूल बिंदु से सबसे दूर शीर्ष कौन-सा है?

In the first-quadrant solution triangle of \(x+4y\leq 16\), which vertex is farthest from the origin?

Explanation opens after your attempt
Correct Answer

D. ((16,0))

Step 1

Concept

The intercepts are ((16,0)) and ((0,4)), whose distances from the origin are (16) and (4). Exam tip: You can also compare squared distances.

Step 2

Why this answer is correct

The correct answer is D. ((16,0)). The intercepts are ((16,0)) and ((0,4)), whose distances from the origin are (16) and (4). Exam tip: You can also compare squared distances.

Step 3

Exam Tip

अक्षीय कटान ((16,0)) और ((0,4)) हैं, जिनमें मूल बिंदु से दूरी (16) और (4) है। परीक्षा सुझाव: दूरी तुलना में वर्गों का उपयोग भी कर सकते हैं।

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तंत्र \(y\leq 3\), \(y\geq x-1\), \(x\geq 0\) के हल क्षेत्र के बारे में सही कथन कौन-सा है?

Which statement is correct about the solution region of \(y\leq 3\), \(y\geq x-1\), \(x\geq 0\)?

Explanation opens after your attempt
Correct Answer

C. सीमित और बंदBounded and closed

Step 1

Concept

From \(x-1\leq 3\), we get \(x\leq 4\), and all boundaries are included. Exam tip: A hidden upper bound may come from comparing inequalities.

Step 2

Why this answer is correct

The correct answer is C. सीमित और बंद / Bounded and closed. From \(x-1\leq 3\), we get \(x\leq 4\), and all boundaries are included. Exam tip: A hidden upper bound may come from comparing inequalities.

Step 3

Exam Tip

\(x-1\leq 3\) से \(x\leq 4\) मिलता है और सभी सीमाएँ शामिल हैं। परीक्षा सुझाव: छिपी हुई ऊपरी सीमा तुलना से मिलती है।

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तंत्र \(x+y\leq 3\), (2x+2y>8) का ग्राफीय सामान्य क्षेत्र क्या है?

What is the common graphical region of \(x+y\leq 3\), (2x+2y>8)?

Explanation opens after your attempt
Correct Answer

B. कोई सामान्य क्षेत्र नहींNo common region

Step 1

Concept

The second inequality is (x+y>4), which cannot overlap with \(x+y\leq 3\). Exam tip: Simplify proportional boundary lines first.

Step 2

Why this answer is correct

The correct answer is B. कोई सामान्य क्षेत्र नहीं / No common region. The second inequality is (x+y>4), which cannot overlap with \(x+y\leq 3\). Exam tip: Simplify proportional boundary lines first.

Step 3

Exam Tip

दूसरी असमानता (x+y>4) है जो \(x+y\leq 3\) से मेल नहीं खाती। परीक्षा सुझाव: समान गुणज वाली रेखाओं को पहले सरल करें।

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कौन-सा बिंदु \(4x+y\leq 12\) की सीमा रेखा पर है और प्रथम चतुर्थांश में भी है?

Which point lies on the boundary line of \(4x+y\leq 12\) and is also in the first quadrant?

Explanation opens after your attempt
Correct Answer

A. ((2,4))

Step 1

Concept

At ((2,4)), \(4\cdot2+4=12\), so it lies on the boundary. Exam tip: For boundary checking, replace the inequality by its equation.

Step 2

Why this answer is correct

The correct answer is A. ((2,4)). At ((2,4)), \(4\cdot2+4=12\), so it lies on the boundary. Exam tip: For boundary checking, replace the inequality by its equation.

Step 3

Exam Tip

((2,4)) पर \(4\cdot2+4=12\) इसलिए यह सीमा पर है। परीक्षा सुझाव: सीमा के लिए असमानता की जगह समीकरण लगाएँ।

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असमानता (2x-3y<6) का ग्राफ किस रूप में बनेगा?

How will the graph of the inequality (2x-3y<6) be represented?

Explanation opens after your attempt
Correct Answer

C. \(y>\frac{2}{3}x-2\), टूटी सीमा\(y>\frac{2}{3}x-2\), dashed boundary

Step 1

Concept

Dividing (-3y<6-2x) by a negative number gives \(y>\frac{2}{3}x-2\). Exam tip: Keep a dashed boundary for strict inequalities.

Step 2

Why this answer is correct

The correct answer is C. \(y>\frac{2}{3}x-2\), टूटी सीमा / \(y>\frac{2}{3}x-2\), dashed boundary. Dividing (-3y<6-2x) by a negative number gives \(y>\frac{2}{3}x-2\). Exam tip: Keep a dashed boundary for strict inequalities.

Step 3

Exam Tip

(-3y<6-2x) में ऋण से भाग देने पर \(y>\frac{2}{3}x-2\) होता है। परीक्षा सुझाव: कठोर असमानता में टूटी सीमा रखें।

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तंत्र \(x\geq 1\), \(y\geq 2\), \(x+y\leq 10\) से बने त्रिभुज का क्षेत्रफल क्या है?

What is the area of the triangle formed by \(x\geq 1\), \(y\geq 2\), \(x+y\leq 10\)?

Explanation opens after your attempt
Correct Answer

D. \(\frac{49}{2}\)

Step 1

Concept

The vertices are ((1,2)), ((1,9)), and ((8,2)), giving perpendicular lengths (7) and (7). Exam tip: For shifted axis bounds, read base and height carefully.

Step 2

Why this answer is correct

The correct answer is D. \(\frac{49}{2}\). The vertices are ((1,2)), ((1,9)), and ((8,2)), giving perpendicular lengths (7) and (7). Exam tip: For shifted axis bounds, read base and height carefully.

Step 3

Exam Tip

शीर्ष ((1,2)), ((1,9)), ((8,2)) हैं और लंबाई (7), (7) है। परीक्षा सुझाव: स्थानांतरित अक्षीय सीमाओं में आधार और ऊँचाई ध्यान से लें।

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तंत्र \(x+2y\leq 4\), \(x+2y\geq 4\) का सामान्य हल क्या है?

What is the common solution of the system \(x+2y\leq 4\), \(x+2y\geq 4\)?

Explanation opens after your attempt
Correct Answer

B. पूरी रेखा (x+2y=4)The whole line (x+2y=4)

Step 1

Concept

Together, the two inequalities force (x+2y=4). Exam tip: Opposite inequalities with the same boundary may reduce to a line.

Step 2

Why this answer is correct

The correct answer is B. पूरी रेखा (x+2y=4) / The whole line (x+2y=4). Together, the two inequalities force (x+2y=4). Exam tip: Opposite inequalities with the same boundary may reduce to a line.

Step 3

Exam Tip

दोनों असमानताएँ साथ में (x+2y=4) को ही संभव बनाती हैं। परीक्षा सुझाव: विपरीत दिशाओं वाली समान सीमा कभी-कभी रेखा बनाती है।

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टूटी सीमा (x+2y=8) है और छायांकित भाग ((1,1)) को शामिल करता है। सही असमानता कौन-सी है?

The dashed boundary is (x+2y=8), and the shaded part contains ((1,1)). Which inequality is correct?

Explanation opens after your attempt
Correct Answer

A. (x+2y<8)

Step 1

Concept

Substituting ((1,1)) gives (1+2=3<8), and the dashed boundary requires (<). Exam tip: Check both the test point and boundary type.

Step 2

Why this answer is correct

The correct answer is A. (x+2y<8). Substituting ((1,1)) gives (1+2=3<8), and the dashed boundary requires (<). Exam tip: Check both the test point and boundary type.

Step 3

Exam Tip

((1,1)) रखने पर (1+2=3<8) और टूटी सीमा के कारण (<) लिया जाएगा। परीक्षा सुझाव: परीक्षण बिंदु और सीमा का प्रकार दोनों देखें।

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तंत्र \(3x+y\leq 6\), \(x-y\geq 0\), \(y\geq 0\) के हल क्षेत्र के शीर्ष कौन-से हैं?

What are the vertices of the solution region of \(3x+y\leq 6\), \(x-y\geq 0\), \(y\geq 0\)?

Explanation opens after your attempt
Correct Answer

C. ((0,0)), ((2,0)), (\(\frac{3}{2},\frac{3}{2}\))

Step 1

Concept

The condition \(x-y\geq 0\) gives \(y\leq x\), and its intersection with (3x+y=6) is (\(\frac{3}{2},\frac{3}{2}\)). Exam tip: Reading the region is easier after rewriting inequalities.

Step 2

Why this answer is correct

The correct answer is C. ((0,0)), ((2,0)), (\(\frac{3}{2},\frac{3}{2}\)). The condition \(x-y\geq 0\) gives \(y\leq x\), and its intersection with (3x+y=6) is (\(\frac{3}{2},\frac{3}{2}\)). Exam tip: Reading the region is easier after rewriting inequalities.

Step 3

Exam Tip

\(x-y\geq 0\) से \(y\leq x\) और (3x+y=6) से प्रतिच्छेद (\(\frac{3}{2},\frac{3}{2}\)) मिलता है। परीक्षा सुझाव: बदले हुए रूप में क्षेत्र पढ़ना आसान होता है।

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ठोस सीमा (2x-5y=10) के साथ मूल बिंदु वाला पक्ष नहीं लेना हो, तो सही असमानता कौन-सी है?

With solid boundary (2x-5y=10), which inequality is correct if the side containing the origin is not taken?

Explanation opens after your attempt
Correct Answer

D. \(2x-5y\geq 10\)

Step 1

Concept

The origin satisfies \(2x-5y\leq 10\), so the opposite side is \(2x-5y\geq 10\). Exam tip: Keep equality for a solid boundary.

Step 2

Why this answer is correct

The correct answer is D. \(2x-5y\geq 10\). The origin satisfies \(2x-5y\leq 10\), so the opposite side is \(2x-5y\geq 10\). Exam tip: Keep equality for a solid boundary.

Step 3

Exam Tip

मूल बिंदु \(2x-5y\leq 10\) को सत्य करता है इसलिए विपरीत पक्ष \(2x-5y\geq 10\) होगा। परीक्षा सुझाव: ठोस सीमा के लिए बराबरी शामिल रखें।

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तंत्र \(y\geq x+1\), \(y\leq -x+5\) का सामान्य क्षेत्र किस रूप में है?

What is the common region for the system \(y\geq x+1\), \(y\leq -x+5\)?

Explanation opens after your attempt
Correct Answer

B. दोनों रेखाओं के बीच का असीमित क्षेत्र और \(x\leq 2\)Unbounded region between the two lines with \(x\leq 2\)

Step 1

Concept

Both conditions require \(x+1\leq -x+5\), which gives \(x\leq 2\). Exam tip: Compare the lower and upper boundary lines.

Step 2

Why this answer is correct

The correct answer is B. दोनों रेखाओं के बीच का असीमित क्षेत्र और \(x\leq 2\) / Unbounded region between the two lines with \(x\leq 2\). Both conditions require \(x+1\leq -x+5\), which gives \(x\leq 2\). Exam tip: Compare the lower and upper boundary lines.

Step 3

Exam Tip

दोनों शर्तों के लिए \(x+1\leq -x+5\) होना चाहिए जिससे \(x\leq 2\) मिलता है। परीक्षा सुझाव: ऊपर और नीचे की रेखाओं की तुलना करें।

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प्रथम चतुर्थांश में \(2x+y\leq 8\), \(x+2y\leq 8\) के सामान्य क्षेत्र में (x+y) का अधिकतम मान क्या है?

In the common first-quadrant region of \(2x+y\leq 8\), \(x+2y\leq 8\), what is the maximum value of (x+y)?

Explanation opens after your attempt
Correct Answer

A. \(\frac{16}{3}\)

Step 1

Concept

The two boundary lines meet at (\(\frac{8}{3},\frac{8}{3}\)), where \(x+y=\frac{16}{3}\). Exam tip: A linear expression usually attains its extreme at a vertex.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{16}{3}\). The two boundary lines meet at (\(\frac{8}{3},\frac{8}{3}\)), where \(x+y=\frac{16}{3}\). Exam tip: A linear expression usually attains its extreme at a vertex.

Step 3

Exam Tip

दोनों सीमा रेखाएँ (\(\frac{8}{3},\frac{8}{3}\)) पर मिलती हैं और वहाँ \(x+y=\frac{16}{3}\) है। परीक्षा सुझाव: रैखिक मान का चरम प्रायः शीर्ष पर मिलता है।

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सीमा रेखा ((4,0)) और ((0,2)) से गुजरती है, रेखा शामिल है और मूल बिंदु हल नहीं है। सही असमानता कौन-सी है?

The boundary line passes through ((4,0)) and ((0,2)), the line is included, and the origin is not a solution. Which inequality is correct?

Explanation opens after your attempt
Correct Answer

C. \(x+2y\geq 4\)

Step 1

Concept

The line is (x+2y=4), and the origin makes \(0\geq 4\) false. Exam tip: If the line is included, use only \(\leq\) or \(\geq\).

Step 2

Why this answer is correct

The correct answer is C. \(x+2y\geq 4\). The line is (x+2y=4), and the origin makes \(0\geq 4\) false. Exam tip: If the line is included, use only \(\leq\) or \(\geq\).

Step 3

Exam Tip

रेखा (x+2y=4) है और मूल बिंदु \(0\geq 4\) को असत्य करता है। परीक्षा सुझाव: रेखा शामिल हो तो \(\leq\) या \(\geq\) ही लें।

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बिंदु ((3,2)) तंत्र (x+2y<7), \(2x+y\leq 8\) के लिए क्यों मान्य नहीं है?

Why is the point ((3,2)) not valid for the system (x+2y<7), \(2x+y\leq 8\)?

Explanation opens after your attempt
Correct Answer

B. क्योंकि (x+2y<7) में समानता मिलती हैBecause equality occurs in (x+2y<7)

Step 1

Concept

At ((3,2)), (x+2y=7), but (x+2y<7) excludes the boundary. Exam tip: Remove equality points in strict inequalities.

Step 2

Why this answer is correct

The correct answer is B. क्योंकि (x+2y<7) में समानता मिलती है / Because equality occurs in (x+2y<7). At ((3,2)), (x+2y=7), but (x+2y<7) excludes the boundary. Exam tip: Remove equality points in strict inequalities.

Step 3

Exam Tip

((3,2)) पर (x+2y=7) है लेकिन (x+2y<7) में सीमा शामिल नहीं होती। परीक्षा सुझाव: कठोर असमानता में बराबरी वाले बिंदु हटा दें।

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तंत्र \(x-y\leq 0\), \(x+y\leq 4\), \(x\geq 0\) के हल क्षेत्र के शीर्ष कौन-से हैं?

What are the vertices of the solution region of \(x-y\leq 0\), \(x+y\leq 4\), \(x\geq 0\)?

Explanation opens after your attempt
Correct Answer

D. ((0,0)), ((0,4)), ((2,2))

Step 1

Concept

The condition \(x-y\leq 0\) gives \(y\geq x\), and together with \(x+y\leq 4\) these form the triangle. Exam tip: Test every vertex in all inequalities.

Step 2

Why this answer is correct

The correct answer is D. ((0,0)), ((0,4)), ((2,2)). The condition \(x-y\leq 0\) gives \(y\geq x\), and together with \(x+y\leq 4\) these form the triangle. Exam tip: Test every vertex in all inequalities.

Step 3

Exam Tip

\(x-y\leq 0\) से \(y\geq x\) और \(x+y\leq 4\) मिलकर ये त्रिभुज बनाते हैं। परीक्षा सुझाव: हर शीर्ष को सभी असमानताओं में रखकर जाँचें।

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प्रथम चतुर्थांश में \(5x+2y\geq 10\) का ग्राफीय हल किस प्रकार का है?

What type of graphical solution does \(5x+2y\geq 10\) have in the first quadrant?

Explanation opens after your attempt
Correct Answer

A. असीमित क्षेत्र जो मूल बिंदु को शामिल नहीं करताUnbounded region not containing the origin

Step 1

Concept

The origin makes \(0\geq 10\) false, so the first-quadrant side away from the line is taken. Exam tip: With \(\geq\), the boundary line remains included.

Step 2

Why this answer is correct

The correct answer is A. असीमित क्षेत्र जो मूल बिंदु को शामिल नहीं करता / Unbounded region not containing the origin. The origin makes \(0\geq 10\) false, so the first-quadrant side away from the line is taken. Exam tip: With \(\geq\), the boundary line remains included.

Step 3

Exam Tip

मूल बिंदु \(0\geq 10\) असत्य करता है इसलिए रेखा से दूर वाला प्रथम चतुर्थांश भाग लिया जाता है। परीक्षा सुझाव: \(\geq\) वाली रेखा के लिए सीमा शामिल रहती है।

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रेखा (y=2x+1) के नीचे सीमा रहित अर्ध-समतल को कौन-सी असमानता दर्शाती है?

Which inequality represents the open half-plane below the line (y=2x+1)?

Explanation opens after your attempt
Correct Answer

C. (y<2x+1)

Step 1

Concept

Below means the value of (y) is less than the line value, and open boundary gives (<). Exam tip: In above-below questions, compare (y) directly.

Step 2

Why this answer is correct

The correct answer is C. (y<2x+1). Below means the value of (y) is less than the line value, and open boundary gives (<). Exam tip: In above-below questions, compare (y) directly.

Step 3

Exam Tip

नीचे का अर्थ (y) का मान रेखा से कम है और सीमा रहित होने से (<) आता है। परीक्षा सुझाव: ऊपर-नीचे वाले प्रश्नों में (y) की तुलना सीधे करें।

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असमानता \(x+3y\leq 9\) के प्रथम चतुर्थांश ग्राफ के लिए सही कथन चुनिए।

Choose the correct statement for the first-quadrant graph of \(x+3y\leq 9\).

Explanation opens after your attempt
Correct Answer

B. कटान ((9,0)), ((0,3)) हैं और मूल बिंदु अंदर हैIntercepts are ((9,0)), ((0,3)) and origin is inside

Step 1

Concept

Putting (y=0) gives (x=9), and putting (x=0) gives (y=3). Exam tip: Set one variable to zero to find intercepts.

Step 2

Why this answer is correct

The correct answer is B. कटान ((9,0)), ((0,3)) हैं और मूल बिंदु अंदर है / Intercepts are ((9,0)), ((0,3)) and origin is inside. Putting (y=0) gives (x=9), and putting (x=0) gives (y=3). Exam tip: Set one variable to zero to find intercepts.

Step 3

Exam Tip

(y=0) पर (x=9) और (x=0) पर (y=3) मिलता है। परीक्षा सुझाव: कटान निकालते समय एक चर को शून्य रखें।

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तंत्र \(x\geq 0\), \(y\geq 0\), \(x+2y\leq 6\), \(2x+y\leq 6\) के हल क्षेत्र के शीर्ष कौन-से हैं?

What are the vertices of the solution region of \(x\geq 0\), \(y\geq 0\), \(x+2y\leq 6\), \(2x+y\leq 6\)?

Explanation opens after your attempt
Correct Answer

D. ((0,0)), ((3,0)), ((2,2)), ((0,3))

Step 1

Concept

The two lines intersect at ((2,2)), and the axes give the limits ((3,0)) and ((0,3)). Exam tip: Verify all possible vertices with the inequalities.

Step 2

Why this answer is correct

The correct answer is D. ((0,0)), ((3,0)), ((2,2)), ((0,3)). The two lines intersect at ((2,2)), and the axes give the limits ((3,0)) and ((0,3)). Exam tip: Verify all possible vertices with the inequalities.

Step 3

Exam Tip

दोनों रेखाओं का प्रतिच्छेद ((2,2)) है और अक्षों पर सीमाएँ ((3,0)), ((0,3)) देती हैं। परीक्षा सुझाव: सभी संभावित शीर्षों को असमानताओं से सत्यापित करें।

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यदि सीमा रेखा (x+y=5) शामिल नहीं है और मूल बिंदु छायांकित नहीं है, तो सही असमानता कौन-सी है?

If the boundary line (x+y=5) is not included and the origin is not shaded, which inequality is correct?

Explanation opens after your attempt
Correct Answer

B. (x+y>5)

Step 1

Concept

The origin satisfies (x+y<5), so excluding it gives (x+y>5). Exam tip: If the boundary is excluded, choose only (<) or (>).

Step 2

Why this answer is correct

The correct answer is B. (x+y>5). The origin satisfies (x+y<5), so excluding it gives (x+y>5). Exam tip: If the boundary is excluded, choose only (<) or (>).

Step 3

Exam Tip

मूल बिंदु (x+y<5) को सत्य करता है इसलिए उसे हटाने के लिए (x+y>5) होगा। परीक्षा सुझाव: सीमा रहित होने पर केवल (<) या (>) चुनें।

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असमानता \(3x-2y\leq 6\) के लिए कौन-सा पक्ष छायांकित होगा?

Which side will be shaded for the inequality \(3x-2y\leq 6\)?

Explanation opens after your attempt
Correct Answer

C. मूल बिंदु वाला पक्ष सीमा सहितSide containing origin with boundary

Step 1

Concept

Substituting the origin gives \(0\leq 6\), so the side containing the origin is taken. Exam tip: ((0,0)) is the fastest test point when allowed.

Step 2

Why this answer is correct

The correct answer is C. मूल बिंदु वाला पक्ष सीमा सहित / Side containing origin with boundary. Substituting the origin gives \(0\leq 6\), so the side containing the origin is taken. Exam tip: ((0,0)) is the fastest test point when allowed.

Step 3

Exam Tip

मूल बिंदु रखने पर \(0\leq 6\) सत्य है इसलिए मूल बिंदु वाला पक्ष लिया जाता है। परीक्षा सुझाव: जब संभव हो तो ((0,0)) सबसे तेज परीक्षण बिंदु है।

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कौन-सा बिंदु (2x-y<1), \(x+y\geq 4\) दोनों असमानताओं को संतुष्ट करता है?

Which point satisfies both inequalities (2x-y<1), \(x+y\geq 4\)?

Explanation opens after your attempt
Correct Answer

A. ((1,3))

Step 1

Concept

At ((1,3)), both (2-3<1) and \(1+3\geq 4\) are true. Exam tip: Substitute options directly into the inequalities.

Step 2

Why this answer is correct

The correct answer is A. ((1,3)). At ((1,3)), both (2-3<1) and \(1+3\geq 4\) are true. Exam tip: Substitute options directly into the inequalities.

Step 3

Exam Tip

((1,3)) पर (2-3<1) और \(1+3\geq 4\) दोनों सत्य हैं। परीक्षा सुझाव: विकल्पों को सीधे असमानताओं में रखकर जाँचें।

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तंत्र \(x\leq 3\), \(y\leq 2\), \(x+y\geq 10\) का हल क्षेत्र क्या होगा?

What will be the solution region of \(x\leq 3\), \(y\leq 2\), \(x+y\geq 10\)?

Explanation opens after your attempt
Correct Answer

D. रिक्त क्षेत्रEmpty region

Step 1

Concept

From the first two conditions, the maximum possible (x+y) is (5), so \(x+y\geq 10\) is impossible. Exam tip: Think about extreme limits before graphing.

Step 2

Why this answer is correct

The correct answer is D. रिक्त क्षेत्र / Empty region. From the first two conditions, the maximum possible (x+y) is (5), so \(x+y\geq 10\) is impossible. Exam tip: Think about extreme limits before graphing.

Step 3

Exam Tip

पहली दो शर्तों से \(x+y\leq 5\) अधिकतम हो सकता है इसलिए \(x+y\geq 10\) असंभव है। परीक्षा सुझाव: ग्राफ से पहले चरम सीमा सोचें।

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तंत्र (x+y<6), \(x\geq 2\), \(y\geq 1\) का हल क्षेत्र कैसा है?

What type of solution region is formed by (x+y<6), \(x\geq 2\), \(y\geq 1\)?

Explanation opens after your attempt
Correct Answer

A. सीमित लेकिन बंद नहींBounded but not closed

Step 1

Concept

The line (x+y=6) is not included, but the region remains within a triangle. Exam tip: A strict inequality changes closedness.

Step 2

Why this answer is correct

The correct answer is A. सीमित लेकिन बंद नहीं / Bounded but not closed. The line (x+y=6) is not included, but the region remains within a triangle. Exam tip: A strict inequality changes closedness.

Step 3

Exam Tip

रेखा (x+y=6) शामिल नहीं है पर क्षेत्र त्रिभुज के भीतर सीमित है। परीक्षा सुझाव: कठोर असमानता बंदपन को बदल देती है।

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प्रथम चतुर्थांश में \(2x+3y\leq 12\) से बने त्रिभुज का क्षेत्रफल क्या है?

What is the area of the triangle formed by \(2x+3y\leq 12\) in the first quadrant?

Explanation opens after your attempt
Correct Answer

C. (12)

Step 1

Concept

The intercepts are ((6,0)) and ((0,4)), so the area is \(\frac{1}{2}\cdot6\cdot4=12\). Exam tip: Use axis intercepts for the first-quadrant triangle.

Step 2

Why this answer is correct

The correct answer is C. (12). The intercepts are ((6,0)) and ((0,4)), so the area is \(\frac{1}{2}\cdot6\cdot4=12\). Exam tip: Use axis intercepts for the first-quadrant triangle.

Step 3

Exam Tip

कटान ((6,0)) और ((0,4)) हैं इसलिए क्षेत्रफल \(\frac{1}{2}\cdot6\cdot4=12\) है। परीक्षा सुझाव: प्रथम चतुर्थांश त्रिभुज में अक्षीय कटानों से क्षेत्रफल निकालें।

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तंत्र \(x+y\leq 4\), \(x+y\geq 7\) का ग्राफीय हल क्या है?

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

Explanation opens after your attempt
Correct Answer

B. कोई समान हल नहींNo common solution

Step 1

Concept

The same quantity (x+y) cannot be at most (4) and at least (7) simultaneously. Exam tip: Detect the empty gap between parallel boundary lines.

Step 2

Why this answer is correct

The correct answer is B. कोई समान हल नहीं / No common solution. The same quantity (x+y) cannot be at most (4) and at least (7) simultaneously. Exam tip: Detect the empty gap between parallel boundary lines.

Step 3

Exam Tip

एक ही राशि (x+y) साथ-साथ (4) से कम और (7) से अधिक नहीं हो सकती। परीक्षा सुझाव: समानांतर सीमा रेखाओं में खाली पट्टी पहचानें।

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