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Class 11 Mathematics - Linear Inequalities - Introduction to inequalities Expert Quiz

Level 42 • 46/50 questions • 25 seconds per question.

Level readiness 46/50 Questions
Time Left 19:10 25 sec/question
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This level needs 4 more active questions. Admin panel me same class, subject, difficulty aur level_no 42 par question add karein.
Question 1 / 46 0 score
Answered 0/46 Correct 0 Time 19:10

किस स्थिति में \(x-4\le 7\) को हल करते समय असमानता का चिह्न नहीं बदलता?

In which situation does the inequality sign not change while solving \(x-4\le 7\)?

Explanation opens after your attempt
Correct Answer

A. दोनों पक्षों में (4) जोड़ने परadding (4) to both sides

Step 1

Concept

Adding the same number to both sides does not change the inequality sign. In exams the sign reverses only for multiplication or division by a negative number.

Step 2

Why this answer is correct

The correct answer is A. दोनों पक्षों में (4) जोड़ने पर / adding (4) to both sides. Adding the same number to both sides does not change the inequality sign. In exams the sign reverses only for multiplication or division by a negative number.

Step 3

Exam Tip

दोनों पक्षों में समान संख्या जोड़ने से असमानता का चिह्न नहीं बदलता। परीक्षा में चिह्न केवल ऋणात्मक गुणा या भाग में उलटता है।

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असमानता (3x+2>11) का हल समुच्चय कौन सा है?

What is the solution set of the inequality (3x+2>11)?

Explanation opens after your attempt
Correct Answer

A. (x>3)

Step 1

Concept

From (3x+2>11), (3x>9), so (x>3). In exams the sign stays same when the final division is positive.

Step 2

Why this answer is correct

The correct answer is A. (x>3). From (3x+2>11), (3x>9), so (x>3). In exams the sign stays same when the final division is positive.

Step 3

Exam Tip

(3x+2>11) से (3x>9), इसलिए (x>3)। परीक्षा में अंतिम भाग धनात्मक हो तो चिह्न वही रहता है।

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असमानता \(-4x+5\ge 17\) का सही हल कौन सा है?

Which is the correct solution of the inequality \(-4x+5\ge 17\)?

Explanation opens after your attempt
Correct Answer

B. \(x\le -3\)

Step 1

Concept

We get \(-4x\ge 12\), and dividing by (-4) gives \(x\le -3\). In exams do not forget to reverse the sign on negative division.

Step 2

Why this answer is correct

The correct answer is B. \(x\le -3\). We get \(-4x\ge 12\), and dividing by (-4) gives \(x\le -3\). In exams do not forget to reverse the sign on negative division.

Step 3

Exam Tip

\(-4x\ge 12\) और (-4) से भाग देने पर \(x\le -3\) मिलता है। परीक्षा में ऋणात्मक भाग से चिह्न उलटना न भूलें।

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यदि (2x-1<5) और (x) पूर्णांक है, तो सबसे बड़ा संभव (x) कौन सा है?

If (2x-1<5) and (x) is an integer, what is the greatest possible (x)?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

From (2x<6), (x<3), so the greatest integer is (2). In exams a strict sign (<) does not include the boundary value.

Step 2

Why this answer is correct

The correct answer is B. (2). From (2x<6), (x<3), so the greatest integer is (2). In exams a strict sign (<) does not include the boundary value.

Step 3

Exam Tip

(2x<6) से (x<3), इसलिए सबसे बड़ा पूर्णांक (2) है। परीक्षा में खुले चिह्न (<) में सीमा मान शामिल नहीं होता।

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यदि (5-2x<9) है, तो संख्या रेखा पर हल किस रूप में होगा?

If (5-2x<9), how will the solution appear on the number line?

Explanation opens after your attempt
Correct Answer

A. (x>-2) पर खुला वृत्तopen circle at (x=-2) with right shading

Step 1

Concept

From (5-2x<9), (-2x<4), so (x>-2). In exams (>) means right shading and an open circle.

Step 2

Why this answer is correct

The correct answer is A. (x>-2) पर खुला वृत्त / open circle at (x=-2) with right shading. From (5-2x<9), (-2x<4), so (x>-2). In exams (>) means right shading and an open circle.

Step 3

Exam Tip

(5-2x<9) से (-2x<4), इसलिए (x>-2)। परीक्षा में (>) के लिए दाईं ओर छाया और खुला वृत्त होता है।

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संयुक्त असमानता \(-2\le 3x+1<10\) का हल कौन सा है?

What is the solution of the compound inequality \(-2\le 3x+1<10\)?

Explanation opens after your attempt
Correct Answer

A. \(-1\le x<3\)

Step 1

Concept

Subtracting (1) from all parts gives \(-3\le 3x<9\), so \(-1\le x<3\). In exams keep all three parts together in compound inequalities.

Step 2

Why this answer is correct

The correct answer is A. \(-1\le x<3\). Subtracting (1) from all parts gives \(-3\le 3x<9\), so \(-1\le x<3\). In exams keep all three parts together in compound inequalities.

Step 3

Exam Tip

सभी भागों से (1) घटाने पर \(-3\le 3x<9\), इसलिए \(-1\le x<3\)। परीक्षा में संयुक्त असमानता में तीनों भाग साथ रखें।

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कौन सा अंतराल \(x\ge 4\) को सही दर्शाता है?

Which interval correctly represents \(x\ge 4\)?

Explanation opens after your attempt
Correct Answer

B. \([4,\infty\))

Step 1

Concept

In \(x\ge 4\), (4) is included, so the left bracket is closed. In exams infinity always uses an open bracket.

Step 2

Why this answer is correct

The correct answer is B. \([4,\infty\)). In \(x\ge 4\), (4) is included, so the left bracket is closed. In exams infinity always uses an open bracket.

Step 3

Exam Tip

\(x\ge 4\) में (4) शामिल है, इसलिए बायाँ ब्रैकेट बंद होगा। परीक्षा में \(\infty\) के साथ हमेशा खुला ब्रैकेट आता है।

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कौन सा कथन (x< -1) या \(x\ge 5\) के हल को सही अंतराल रूप में लिखता है?

Which statement writes the solution of (x< -1) or \(x\ge 5\) correctly in interval form?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,-1\)\cup[5,\infty))

Step 1

Concept

In (x<-1), (-1) is not included, and in \(x\ge5\), (5) is included. In exams or usually means \(\cup\).

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,-1\)\cup[5,\infty)). In (x<-1), (-1) is not included, and in \(x\ge5\), (5) is included. In exams or usually means \(\cup\).

Step 3

Exam Tip

(x<-1) में (-1) शामिल नहीं और \(x\ge5\) में (5) शामिल है। परीक्षा में या का अर्थ प्रायः \(\cup\) होता है।

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कौन सा विकल्प \(2x+3\le x-4\) का हल है?

Which option is the solution of \(2x+3\le x-4\)?

Explanation opens after your attempt
Correct Answer

A. \(x\le -7\)

Step 1

Concept

From \(2x+3\le x-4\), we get \(x\le -7\). In exams keep (x)-terms on one side and constants on the other side.

Step 2

Why this answer is correct

The correct answer is A. \(x\le -7\). From \(2x+3\le x-4\), we get \(x\le -7\). In exams keep (x)-terms on one side and constants on the other side.

Step 3

Exam Tip

\(2x+3\le x-4\) से \(x\le -7\) मिलता है। परीक्षा में (x) पदों को एक तरफ और स्थिर पदों को दूसरी तरफ रखें।

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असमानता \(\frac{x-1}{3}\ge 2\) का हल कौन सा है?

What is the solution of the inequality \(\frac{x-1}{3}\ge 2\)?

Explanation opens after your attempt
Correct Answer

A. \(x\ge 7\)

Step 1

Concept

Since (3) is positive, the sign does not change, and \(x-1\ge6\) gives \(x\ge7\). In exams first check the sign of the denominator.

Step 2

Why this answer is correct

The correct answer is A. \(x\ge 7\). Since (3) is positive, the sign does not change, and \(x-1\ge6\) gives \(x\ge7\). In exams first check the sign of the denominator.

Step 3

Exam Tip

(3) धनात्मक है, इसलिए चिह्न नहीं बदलेगा और \(x-1\ge6\) से \(x\ge7\)। परीक्षा में हर का चिह्न पहले देखें।

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असमानता \(\frac{2-x}{-4}<3\) को सरल करने पर क्या मिलेगा?

What do we get after simplifying \(\frac{2-x}{-4}<3\)?

Explanation opens after your attempt
Correct Answer

A. (x>-10)

Step 1

Concept

Multiplying by (-4) reverses the sign and gives (2-x>-12), so (x<14).

Step 2

Why this answer is correct

The correct answer is A. (x>-10). Multiplying by (-4) reverses the sign and gives (2-x>-12), so (x<14).

Step 3

Exam Tip

(-4) से गुणा करने पर चिह्न उलटेगा और (2-x>-12), इसलिए (x<14) नहीं बल्कि (x<14) होता है।

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यदि \(x\in\mathbb{N}\) और \(2x+1\le 9\), तो हल समुच्चय कौन सा है?

If \(x\in\mathbb{N}\) and \(2x+1\le 9\), what is the solution set?

Explanation opens after your attempt
Correct Answer

A. ({1,2,3,4})

Step 1

Concept

From \(2x\le8\), \(x\le4\), and with \(x\in\mathbb{N}\) we get ({1,2,3,4}). In exams always check the domain.

Step 2

Why this answer is correct

The correct answer is A. ({1,2,3,4}). From \(2x\le8\), \(x\le4\), and with \(x\in\mathbb{N}\) we get ({1,2,3,4}). In exams always check the domain.

Step 3

Exam Tip

\(2x\le8\) से \(x\le4\), और \(x\in\mathbb{N}\) लेने पर ({1,2,3,4}) मिलता है। परीक्षा में डोमेन अवश्य देखें।

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किस विकल्प में \(x\in\mathbb{Z}\) के लिए \(-3<x\le2\) का सही हल समुच्चय है?

Which option gives the correct solution set of \(-3<x\le2\) for \(x\in\mathbb{Z}\)?

Explanation opens after your attempt
Correct Answer

A. ({-2,-1,0,1,2})

Step 1

Concept

The value (-3) is not included and (2) is included. In exams check open and closed endpoints separately.

Step 2

Why this answer is correct

The correct answer is A. ({-2,-1,0,1,2}). The value (-3) is not included and (2) is included. In exams check open and closed endpoints separately.

Step 3

Exam Tip

(-3) शामिल नहीं है और (2) शामिल है। परीक्षा में खुले और बंद छोर अलग-अलग जांचें।

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निम्न में से कौन सा (x>2) और (x<8) का संयुक्त रूप है?

Which is the combined form of (x>2) and (x<8)?

Explanation opens after your attempt
Correct Answer

A. (2<x<8)

Step 1

Concept

Both conditions are required together, so (2<x<8). In exams and usually means intersection \(\cap\).

Step 2

Why this answer is correct

The correct answer is A. (2<x<8). Both conditions are required together, so (2<x<8). In exams and usually means intersection \(\cap\).

Step 3

Exam Tip

दोनों शर्तें साथ चाहिए, इसलिए (2<x<8)। परीक्षा में और का अर्थ प्रायः प्रतिच्छेद \(\cap\) होता है।

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असमानता \(7-3x\le 1\) का हल कौन सा है?

What is the solution of the inequality \(7-3x\le 1\)?

Explanation opens after your attempt
Correct Answer

A. \(x\ge2\)

Step 1

Concept

\(-3x\le -6\), and dividing by (-3) gives \(x\ge2\). In exams reverse the sign when dividing by a negative coefficient.

Step 2

Why this answer is correct

The correct answer is A. \(x\ge2\). \(-3x\le -6\), and dividing by (-3) gives \(x\ge2\). In exams reverse the sign when dividing by a negative coefficient.

Step 3

Exam Tip

\(-3x\le -6\) और (-3) से भाग देने पर \(x\ge2\)। परीक्षा में ऋणात्मक गुणांक से भाग देते समय चिह्न उलटें।

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किस कथन में असमानता (p<q) की सही संपत्ति दी गई है?

Which statement gives the correct property of the inequality (p<q)?

Explanation opens after your attempt
Correct Answer

A. (p+r<q+r) हर वास्तविक (r) के लिए(p+r<q+r) for every real (r)

Step 1

Concept

Adding the same real number does not change the direction of inequality. In exams the sign of the multiplier or divisor matters.

Step 2

Why this answer is correct

The correct answer is A. (p+r<q+r) हर वास्तविक (r) के लिए / (p+r<q+r) for every real (r). Adding the same real number does not change the direction of inequality. In exams the sign of the multiplier or divisor matters.

Step 3

Exam Tip

समान वास्तविक संख्या जोड़ने से असमानता की दिशा नहीं बदलती। परीक्षा में गुणा या भाग में संख्या का चिह्न जरूरी होता है।

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यदि (m>n) और (r<0), तो कौन सा विकल्प सही है?

If (m>n) and (r<0), which option is correct?

Explanation opens after your attempt
Correct Answer

A. (mr<nr)

Step 1

Concept

Multiplying by negative (r) changes (>) into (<). In exams watch for reversal in options containing (r<0).

Step 2

Why this answer is correct

The correct answer is A. (mr<nr). Multiplying by negative (r) changes (>) into (<). In exams watch for reversal in options containing (r<0).

Step 3

Exam Tip

ऋणात्मक (r) से गुणा करने पर (>) चिह्न (<) में बदलता है। परीक्षा में (r<0) वाले विकल्पों में उलटाव देखें।

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किस असमानता का हल खाली समुच्चय है?

Which inequality has the empty set as its solution?

Explanation opens after your attempt
Correct Answer

A. (x+2<x+1)

Step 1

Concept

From (x+2<x+1), we get (2<1), which is false. In exams check the remaining statement after cancelling (x).

Step 2

Why this answer is correct

The correct answer is A. (x+2<x+1). From (x+2<x+1), we get (2<1), which is false. In exams check the remaining statement after cancelling (x).

Step 3

Exam Tip

(x+2<x+1) से (2<1) मिलता है, जो असत्य है। परीक्षा में (x) कटने के बाद बचे कथन को जांचें।

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असमानता \(|x|\ge3\) का सही हल कौन सा है?

What is the correct solution of \(|x|\ge3\)?

Explanation opens after your attempt
Correct Answer

A. \(x\le -3\) या \(x\ge3\)\(x\le -3\) or \(x\ge3\)

Step 1

Concept

In \(|x|\ge3\), the distance from (0) is at least (3). In exams a greater-than absolute value gives two outer parts.

Step 2

Why this answer is correct

The correct answer is A. \(x\le -3\) या \(x\ge3\) / \(x\le -3\) or \(x\ge3\). In \(|x|\ge3\), the distance from (0) is at least (3). In exams a greater-than absolute value gives two outer parts.

Step 3

Exam Tip

\(|x|\ge3\) में (0) से दूरी कम से कम (3) है। परीक्षा में बड़ा वाला निरपेक्ष मान दो बाहरी भाग देता है।

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यदि (x) वास्तविक है और \(x^2\ge0\), तो यह कथन कैसा है?

If (x) is real and \(x^2\ge0\), what type of statement is it?

Explanation opens after your attempt
Correct Answer

A. सदैव सत्यalways true

Step 1

Concept

The square of a real number is never negative, so \(x^2\ge0\) is always true. In exams remember the basic property of squares.

Step 2

Why this answer is correct

The correct answer is A. सदैव सत्य / always true. The square of a real number is never negative, so \(x^2\ge0\) is always true. In exams remember the basic property of squares.

Step 3

Exam Tip

किसी वास्तविक संख्या का वर्ग ऋणात्मक नहीं होता, इसलिए \(x^2\ge0\) सदैव सत्य है। परीक्षा में वर्ग का मूल गुण याद रखें।

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किस विकल्प में \(x^2<0\) के वास्तविक हल सही दिए गए हैं?

Which option correctly gives the real solutions of \(x^2<0\)?

Explanation opens after your attempt
Correct Answer

A. \(\varnothing\)

Step 1

Concept

For real (x), \(x^2\) is never negative. In exams write \(\varnothing\) for an impossible inequality.

Step 2

Why this answer is correct

The correct answer is A. \(\varnothing\). For real (x), \(x^2\) is never negative. In exams write \(\varnothing\) for an impossible inequality.

Step 3

Exam Tip

वास्तविक (x) के लिए \(x^2\) कभी ऋणात्मक नहीं होता। परीक्षा में असंभव असमानता के लिए \(\varnothing\) लिखें।

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किस विकल्प में \(x^2\le0\) का वास्तविक हल सही है?

Which option gives the correct real solution of \(x^2\le0\)?

Explanation opens after your attempt
Correct Answer

A. ({0})

Step 1

Concept

Both \(x^2\le0\) and \(x^2\ge0\) are possible only when (x=0). In exams check the equality case separately.

Step 2

Why this answer is correct

The correct answer is A. ({0}). Both \(x^2\le0\) and \(x^2\ge0\) are possible only when (x=0). In exams check the equality case separately.

Step 3

Exam Tip

\(x^2\le0\) और \(x^2\ge0\) दोनों तभी संभव हैं जब (x=0)। परीक्षा में बराबरी का मामला अलग जांचें।

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असमानता ((x-2)(x+3)>0) के लिए संकेत-परीक्षण से कौन सा हल मिलता है?

Using sign testing, what solution is obtained for ((x-2)(x+3)>0)?

Explanation opens after your attempt
Correct Answer

A. (x<-3) या (x>2)(x<-3) or (x>2)

Step 1

Concept

The product is positive when both factors have the same sign. In exams keep the zero points (-3) and (2) open.

Step 2

Why this answer is correct

The correct answer is A. (x<-3) या (x>2) / (x<-3) or (x>2). The product is positive when both factors have the same sign. In exams keep the zero points (-3) and (2) open.

Step 3

Exam Tip

गुणनफल धनात्मक तब है जब दोनों गुणनखंड समान चिह्न के हों। परीक्षा में शून्य बिंदु (-3) और (2) को खुला रखें।

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किस विकल्प में \(\frac{x-2}{x+1}>0\) का हल सही है?

Which option gives the correct solution of \(\frac{x-2}{x+1}>0\)?

Explanation opens after your attempt
Correct Answer

A. (x<-1) या (x>2)(x<-1) or (x>2)

Step 1

Concept

The fraction is positive when numerator and denominator have the same sign. In exams (x=-1) makes the denominator zero, so it is excluded.

Step 2

Why this answer is correct

The correct answer is A. (x<-1) या (x>2) / (x<-1) or (x>2). The fraction is positive when numerator and denominator have the same sign. In exams (x=-1) makes the denominator zero, so it is excluded.

Step 3

Exam Tip

भिन्न धनात्मक है जब अंश और हर समान चिह्न के हों। परीक्षा में (x=-1) हर को शून्य करता है, इसलिए शामिल नहीं होगा।

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असमानता \(\frac{x+5}{x-3}\le0\) में कौन सा मान हल में शामिल नहीं हो सकता?

Which value cannot be included in the solution of \(\frac{x+5}{x-3}\le0\)?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

At (x=3), the denominator becomes (0), so the fraction is undefined. In exams always exclude values that make the denominator zero.

Step 2

Why this answer is correct

The correct answer is A. (3). At (x=3), the denominator becomes (0), so the fraction is undefined. In exams always exclude values that make the denominator zero.

Step 3

Exam Tip

(x=3) पर हर (0) हो जाता है, इसलिए भिन्न अपरिभाषित है। परीक्षा में हर को शून्य करने वाले मान हमेशा हटाएं।

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यदि (x) वास्तविक है, तो (x+2>x-5) का हल कौन सा है?

If (x) is real, what is the solution of (x+2>x-5)?

Explanation opens after your attempt
Correct Answer

A. \(\mathbb{R}\)

Step 1

Concept

After cancelling (x), we get (2>-5), which is always true. In exams such questions may have all real numbers as the answer.

Step 2

Why this answer is correct

The correct answer is A. \(\mathbb{R}\). After cancelling (x), we get (2>-5), which is always true. In exams such questions may have all real numbers as the answer.

Step 3

Exam Tip

(x) हटाने पर (2>-5) मिलता है, जो सदैव सत्य है। परीक्षा में ऐसे प्रश्नों में सभी वास्तविक संख्याएं उत्तर हो सकती हैं।

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यदि \(x-6\ge x+1\), तो वास्तविक हलों का समुच्चय क्या है?

If \(x-6\ge x+1\), what is the set of real solutions?

Explanation opens after your attempt
Correct Answer

A. \(\varnothing)

Step 1

Concept

After cancelling (x), we get \(-6\ge1\), which is false. In exams a false constant statement means no solution.

Step 2

Why this answer is correct

The correct answer is A. \(\varnothing). After cancelling (x), we get \(-6\ge1\), which is false. In exams a false constant statement means no solution.

Step 3

Exam Tip

(x) हटाने पर \(-6\ge1\) मिलता है, जो असत्य है। परीक्षा में असत्य स्थिर कथन का अर्थ कोई हल नहीं है।

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कौन सा विकल्प \(1<2x-3\le9\) का सही हल है?

Which option is the correct solution of \(1<2x-3\le9\)?

Explanation opens after your attempt
Correct Answer

A. \(2<x\le6\)

Step 1

Concept

Adding (3) to all three parts gives \(4<2x\le12\), so \(2<x\le6\). In exams apply each step to all three parts.

Step 2

Why this answer is correct

The correct answer is A. \(2<x\le6\). Adding (3) to all three parts gives \(4<2x\le12\), so \(2<x\le6\). In exams apply each step to all three parts.

Step 3

Exam Tip

तीनों भागों में (3) जोड़ने पर \(4<2x\le12\), इसलिए \(2<x\le6\)। परीक्षा में हर चरण तीनों भागों पर करें।

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किस विकल्प में (2<3x+5<17) का हल सही है?

Which option gives the correct solution of (2<3x+5<17)?

Explanation opens after your attempt
Correct Answer

A. (-1<x<4)

Step 1

Concept

Subtracting (5) gives (-3<3x<12), so (-1<x<4). In exams strict signs remain strict.

Step 2

Why this answer is correct

The correct answer is A. (-1<x<4). Subtracting (5) gives (-3<3x<12), so (-1<x<4). In exams strict signs remain strict.

Step 3

Exam Tip

(5) घटाने पर (-3<3x<12), इसलिए (-1<x<4)। परीक्षा में खुले चिह्न खुले ही रहते हैं।

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एक परीक्षा में पास होने के लिए अंक (40) से अधिक या बराबर चाहिए। यदि रवि के अंक (m) हैं, तो सही असमानता कौन सी है?

To pass an exam, marks must be greater than or equal to (40). If Ravi has marks (m), which inequality is correct?

Explanation opens after your attempt
Correct Answer

A. \(m\ge40\)

Step 1

Concept

Greater than or equal to is written as \(m\ge40\). In exams when the word equal appears, look for \(\ge\) or \(\le\).

Step 2

Why this answer is correct

The correct answer is A. \(m\ge40\). Greater than or equal to is written as \(m\ge40\). In exams when the word equal appears, look for \(\ge\) or \(\le\).

Step 3

Exam Tip

अधिक या बराबर का गणितीय रूप \(m\ge40\) है। परीक्षा में शब्द बराबर आए तो \(\ge\) या \(\le\) पर ध्यान दें।

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एक लिफ्ट में अधिकतम भार (500) किलोग्राम है। यदि कुल भार (w) है, तो सही असमानता कौन सी है?

A lift has a maximum load of (500) kilograms. If the total load is (w), which inequality is correct?

Explanation opens after your attempt
Correct Answer

A. \(w\le500\)

Step 1

Concept

Maximum (500) means values up to (500) are allowed. In exams the word maximum usually gives \(\le\).

Step 2

Why this answer is correct

The correct answer is A. \(w\le500\). Maximum (500) means values up to (500) are allowed. In exams the word maximum usually gives \(\le\).

Step 3

Exam Tip

अधिकतम (500) का अर्थ है (500) तक अनुमति है। परीक्षा में अधिकतम शब्द सामान्यतः \(\le\) देता है।

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एक संख्या का तीन गुना (21) से कम है। यदि संख्या (x) है, तो सही असमानता कौन सी है?

Three times a number is less than (21). If the number is (x), which inequality is correct?

Explanation opens after your attempt
Correct Answer

A. (3x<21)

Step 1

Concept

Three times means (3x), and less than means (<). In exams translate words directly into algebra.

Step 2

Why this answer is correct

The correct answer is A. (3x<21). Three times means (3x), and less than means (<). In exams translate words directly into algebra.

Step 3

Exam Tip

तीन गुना का अर्थ (3x) और कम है का अर्थ (<) है। परीक्षा में शब्दों को सीधे बीजगणित में बदलें।

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यदि (2x+5) कम से कम (13) है, तो (x) के लिए सही निष्कर्ष कौन सा है?

If (2x+5) is at least (13), what is the correct conclusion for (x)?

Explanation opens after your attempt
Correct Answer

A. \(x\ge4\)

Step 1

Concept

At least (13) means \(2x+5\ge13\), so \(x\ge4\). In exams remember that at least means \(\ge\).

Step 2

Why this answer is correct

The correct answer is A. \(x\ge4\). At least (13) means \(2x+5\ge13\), so \(x\ge4\). In exams remember that at least means \(\ge\).

Step 3

Exam Tip

कम से कम (13) का अर्थ \(2x+5\ge13\), इसलिए \(x\ge4\)। परीक्षा में at least का अर्थ \(\ge\) याद रखें।

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यदि (4x-7) अधिकतम (9) है, तो (x) का हल कौन सा है?

If (4x-7) is at most (9), what is the solution for (x)?

Explanation opens after your attempt
Correct Answer

A. \(x\le4\)

Step 1

Concept

At most (9) means \(4x-7\le9\), so \(x\le4\). In exams at most means \(\le\).

Step 2

Why this answer is correct

The correct answer is A. \(x\le4\). At most (9) means \(4x-7\le9\), so \(x\le4\). In exams at most means \(\le\).

Step 3

Exam Tip

अधिकतम (9) का अर्थ \(4x-7\le9\), इसलिए \(x\le4\)। परीक्षा में at most का अर्थ \(\le\) होता है।

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कौन सा मान असमानता (2x-3>7) को संतुष्ट करता है?

Which value satisfies the inequality (2x-3>7)?

Explanation opens after your attempt
Correct Answer

A. (x=6)

Step 1

Concept

The solution is (x>5), so (x=6) satisfies it. In exams the boundary (5) itself is not included.

Step 2

Why this answer is correct

The correct answer is A. (x=6). The solution is (x>5), so (x=6) satisfies it. In exams the boundary (5) itself is not included.

Step 3

Exam Tip

असमानता का हल (x>5) है, इसलिए (x=6) संतुष्ट करता है। परीक्षा में सीमा (5) खुद शामिल नहीं है।

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कौन सा मान असमानता \(5-4x\ge -7\) को संतुष्ट नहीं करता?

Which value does not satisfy the inequality \(5-4x\ge -7\)?

Explanation opens after your attempt
Correct Answer

A. (x=4)

Step 1

Concept

From \(5-4x\ge-7\), \(x\le3\), so (x=4) is not in the solution. In exams notice the phrase does not satisfy.

Step 2

Why this answer is correct

The correct answer is A. (x=4). From \(5-4x\ge-7\), \(x\le3\), so (x=4) is not in the solution. In exams notice the phrase does not satisfy.

Step 3

Exam Tip

\(5-4x\ge-7\) से \(x\le3\), इसलिए (x=4) हल में नहीं है। परीक्षा में नहीं संतुष्ट करता शब्द पर ध्यान दें।

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किस विकल्प में \(x+3\ge2x-1\) का हल सही है?

Which option gives the correct solution of \(x+3\ge2x-1\)?

Explanation opens after your attempt
Correct Answer

A. \(x\le4\)

Step 1

Concept

From \(x+3\ge2x-1\), \(4\ge x\), that is \(x\le4\). In exams understand the direction when rewriting \(4\ge x\) as \(x\le4\).

Step 2

Why this answer is correct

The correct answer is A. \(x\le4\). From \(x+3\ge2x-1\), \(4\ge x\), that is \(x\le4\). In exams understand the direction when rewriting \(4\ge x\) as \(x\le4\).

Step 3

Exam Tip

\(x+3\ge2x-1\) से \(4\ge x\), अर्थात \(x\le4\)। परीक्षा में \(4\ge x\) को \(x\le4\) में बदलते समय दिशा समझें।

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किस विकल्प में \(-1\le \frac{x}{2}<4\) का हल सही है?

Which option gives the correct solution of \(-1\le \frac{x}{2}<4\)?

Explanation opens after your attempt
Correct Answer

A. \(-2\le x<8\)

Step 1

Concept

Multiplying all parts by positive (2) gives \(-2\le x<8\). In exams positive multiplication does not change signs.

Step 2

Why this answer is correct

The correct answer is A. \(-2\le x<8\). Multiplying all parts by positive (2) gives \(-2\le x<8\). In exams positive multiplication does not change signs.

Step 3

Exam Tip

सभी भागों को धनात्मक (2) से गुणा करने पर \(-2\le x<8\)। परीक्षा में धनात्मक गुणा से चिह्न नहीं बदलते।

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यदि \(-6< -2x\le10\), तो (x) के लिए सही हल कौन सा है?

If \(-6< -2x\le10\), what is the correct solution for (x)?

Explanation opens after your attempt
Correct Answer

A. \(-5\le x<3\)

Step 1

Concept

Dividing by (-2) reverses both signs and gives \(3>x\ge-5\), that is \(-5\le x<3\). In exams rewrite compound inequalities in increasing order.

Step 2

Why this answer is correct

The correct answer is A. \(-5\le x<3\). Dividing by (-2) reverses both signs and gives \(3>x\ge-5\), that is \(-5\le x<3\). In exams rewrite compound inequalities in increasing order.

Step 3

Exam Tip

(-2) से भाग देने पर दोनों चिह्न उलटते हैं और \(3>x\ge-5\), यानी \(-5\le x<3\)। परीक्षा में संयुक्त असमानता को क्रम में फिर से लिखें।

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असमानता (5(2x-1)<3x+16) का सही हल कौन सा है?

What is the correct solution of the inequality (5(2x-1)<3x+16)?

Explanation opens after your attempt
Correct Answer

A. (x<3)

Step 1

Concept

Expanding gives (10x-5<3x+16), so (7x<21) and (x<3). In exams expand brackets carefully first.

Step 2

Why this answer is correct

The correct answer is A. (x<3). Expanding gives (10x-5<3x+16), so (7x<21) and (x<3). In exams expand brackets carefully first.

Step 3

Exam Tip

कोष्ठक खोलने पर (10x-5<3x+16), इसलिए (7x<21) और (x<3)। परीक्षा में पहले कोष्ठक सही खोलें।

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संयुक्त असमानता \(-4<\frac{x+2}{3}\le2\) का हल कौन सा है?

What is the solution of the compound inequality \(-4<\frac{x+2}{3}\le2\)?

Explanation opens after your attempt
Correct Answer

A. \(-14<x\le4\)

Step 1

Concept

Multiplying by positive (3) gives \(-12<x+2\le6\), so \(-14<x\le4\). In exams preserve open and closed signs separately.

Step 2

Why this answer is correct

The correct answer is A. \(-14<x\le4\). Multiplying by positive (3) gives \(-12<x+2\le6\), so \(-14<x\le4\). In exams preserve open and closed signs separately.

Step 3

Exam Tip

धनात्मक (3) से गुणा करने पर \(-12<x+2\le6\), इसलिए \(-14<x\le4\)। परीक्षा में खुले और बंद चिह्न अलग-अलग बनाए रखें।

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यदि \(x\in\mathbb{Z}\) और \(-2\le\frac{3x-1}{2}<5\), तो हल समुच्चय कौन सा है?

If \(x\in\mathbb{Z}\) and \(-2\le\frac{3x-1}{2}<5\), what is the solution set?

Explanation opens after your attempt
Correct Answer

A. ({-1,0,1,2,3})

Step 1

Concept

The solution is \(-1\le x<\frac{11}{3}\), so the integers are ({-1,0,1,2,3}). In exams write the final answer according to the domain.

Step 2

Why this answer is correct

The correct answer is A. ({-1,0,1,2,3}). The solution is \(-1\le x<\frac{11}{3}\), so the integers are ({-1,0,1,2,3}). In exams write the final answer according to the domain.

Step 3

Exam Tip

हल \(-1\le x<\frac{11}{3}\) है, इसलिए पूर्णांक ({-1,0,1,2,3}) मिलते हैं। परीक्षा में अंतिम उत्तर डोमेन के अनुसार लिखें।

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असमानता \(\frac{2x-5}{4}>\frac{x+1}{3}\) का सही हल कौन सा है?

What is the correct solution of \(\frac{2x-5}{4}>\frac{x+1}{3}\)?

Explanation opens after your attempt
Correct Answer

A. \(x>\frac{19}{2}\)

Step 1

Concept

Multiplying by positive (12) gives (3(2x-5)>4(x+1)), so (2x>19). In exams the sign does not change when the LCM is positive.

Step 2

Why this answer is correct

The correct answer is A. \(x>\frac{19}{2}\). Multiplying by positive (12) gives (3(2x-5)>4(x+1)), so (2x>19). In exams the sign does not change when the LCM is positive.

Step 3

Exam Tip

धनात्मक (12) से गुणा करने पर (3(2x-5)>4(x+1)), इसलिए (2x>19)। परीक्षा में एलसीएम धनात्मक हो तो चिह्न नहीं बदलता।

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यदि (a<b) और (d>0), तो निम्न में से कौन सा कथन सदैव सही है?

If (a<b) and (d>0), which of the following is always true?

Explanation opens after your attempt
Correct Answer

A. (ad<bd)

Step 1

Concept

Multiplying by positive (d) keeps the direction of the inequality unchanged. In exams identify the sign of the multiplier first.

Step 2

Why this answer is correct

The correct answer is A. (ad<bd). Multiplying by positive (d) keeps the direction of the inequality unchanged. In exams identify the sign of the multiplier first.

Step 3

Exam Tip

धनात्मक (d) से गुणा करने पर असमानता की दिशा वही रहती है। परीक्षा में गुणक का चिह्न पहले पहचानें।

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किस विकल्प में \(\frac{x-4}{x+2}<0\) का हल सही है?

Which option gives the correct solution of \(\frac{x-4}{x+2}<0\)?

Explanation opens after your attempt
Correct Answer

A. (-2<x<4)

Step 1

Concept

The fraction is negative when numerator and denominator have opposite signs. In exams (x=-2) makes the denominator zero and (x=4) gives (0), so both are excluded.

Step 2

Why this answer is correct

The correct answer is A. (-2<x<4). The fraction is negative when numerator and denominator have opposite signs. In exams (x=-2) makes the denominator zero and (x=4) gives (0), so both are excluded.

Step 3

Exam Tip

भिन्न ऋणात्मक तब होता है जब अंश और हर विपरीत चिह्न के हों। परीक्षा में (x=-2) हर को शून्य करता है और (x=4) पर मान (0) है, इसलिए दोनों शामिल नहीं हैं।

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एक पुस्तक की कीमत (p) रुपये है और बजट (350) रुपये से कम है। सही असमानता कौन सी है?

A book costs (p) rupees and the budget is less than (350) rupees. Which inequality is correct?

Explanation opens after your attempt
Correct Answer

A. (p<350)

Step 1

Concept

It says less than, not at most, so the inequality is (p<350). In exams distinguish less than from at most.

Step 2

Why this answer is correct

The correct answer is A. (p<350). It says less than, not at most, so the inequality is (p<350). In exams distinguish less than from at most.

Step 3

Exam Tip

कम से कम नहीं बल्कि कम है लिखा है, इसलिए (p<350) होगा। परीक्षा में less than और at most में अंतर रखें।

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FAQs

Class 11 Mathematics Quiz FAQs

How many questions are in this quiz?

This level is designed for 50 active questions. Currently 46 questions are available for the selected class and difficulty.

Is there a timer in this quiz?

Yes, the timer uses 25 seconds per question for Expert difficulty and shows the total remaining time on the page.

Can I open each question separately?

Yes, every question has its own SEO-friendly page with answer, explanation and related practice links.