Concept-wise Practice

word_to_expression MCQ Questions for Class 9

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

Practice Questions

34 questions tagged with word_to_expression.

कौन-सा व्यंजक (y) के वर्ग के (5) गुने और (x) के तीन गुने के अंतर को दर्शाता है?

Which expression represents the difference between five times the square of (y) and three times (x)?

Explanation opens after your attempt
Correct Answer

A. \(5y^2-3x\)

Step 1

Concept

Five times the square of (y) is \(5y^2\), and three times (x) is (3x). The difference is \(5y^2-3x\).

Step 2

Why this answer is correct

The correct answer is A. \(5y^2-3x\). Five times the square of (y) is \(5y^2\), and three times (x) is (3x). The difference is \(5y^2-3x\).

Step 3

Exam Tip

(y) के वर्ग का (5) गुना \(5y^2\) है और (x) का तीन गुना (3x) है। अंतर \(5y^2-3x\) होगा।

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कौन-सा व्यंजक (x) और (y) के अंतर के वर्ग में (4xy) जोड़ने को दर्शाता है?

Which expression represents adding (4xy) to the square of the difference of (x) and (y)?

Explanation opens after your attempt
Correct Answer

D. ((x-y)2+4xy)

Step 1

Concept

First the difference (x-y) is squared and then (4xy) is added. Therefore ((x-y)2+4xy) is correct.

Step 2

Why this answer is correct

The correct answer is D. ((x-y)2+4xy). First the difference (x-y) is squared and then (4xy) is added. Therefore ((x-y)2+4xy) is correct.

Step 3

Exam Tip

पहले अंतर (x-y) का वर्ग लिया जाता है फिर (4xy) जोड़ा जाता है। इसलिए ((x-y)2+4xy) सही है।

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कौन-सा व्यंजक (x) के वर्ग के (3) गुने और (y) के दोगुने के अंतर को दर्शाता है?

Which expression represents the difference between three times the square of (x) and twice (y)?

Explanation opens after your attempt
Correct Answer

A. \(3x^2-2y\)

Step 1

Concept

Three times the square of (x) is \(3x^2\), and twice (y) is (2y). The difference is \(3x^2-2y\).

Step 2

Why this answer is correct

The correct answer is A. \(3x^2-2y\). Three times the square of (x) is \(3x^2\), and twice (y) is (2y). The difference is \(3x^2-2y\).

Step 3

Exam Tip

(x) के वर्ग का (3) गुना \(3x^2\) है और (y) का दोगुना (2y) है। अंतर \(3x^2-2y\) होगा।

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कौन-सा व्यंजक (a) और (b) के योग के वर्ग में से (ab) का (3) गुना घटाने को दर्शाता है?

Which expression represents subtracting (3) times (ab) from the square of the sum of (a) and (b)?

Explanation opens after your attempt
Correct Answer

C. ((a+b)2-3ab)

Step 1

Concept

First square the sum (a+b), then subtract (3ab). Therefore, ((a+b)2-3ab) is correct.

Step 2

Why this answer is correct

The correct answer is C. ((a+b)2-3ab). First square the sum (a+b), then subtract (3ab). Therefore, ((a+b)2-3ab) is correct.

Step 3

Exam Tip

पहले योग (a+b) का वर्ग लिया जाएगा और फिर (3ab) घटेगा। इसलिए ((a+b)2-3ab) सही है।

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कौन-सा व्यंजक (3x-2y) के (4) गुने में (x+y) जोड़ने को दर्शाता है?

Which expression represents adding (x+y) to four times (3x-2y)?

Explanation opens after your attempt
Correct Answer

A. (4(3x-2y)+x+y)

Step 1

Concept

First take four times (3x-2y), then add (x+y). Therefore (4(3x-2y)+x+y) is correct.

Step 2

Why this answer is correct

The correct answer is A. (4(3x-2y)+x+y). First take four times (3x-2y), then add (x+y). Therefore (4(3x-2y)+x+y) is correct.

Step 3

Exam Tip

पहले (3x-2y) का (4) गुना लेना है और फिर (x+y) जोड़ना है। इसलिए (4(3x-2y)+x+y) सही है।

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कौन-सा व्यंजक (x) के वर्ग और (y) के वर्ग के योग में (2xy) घटाने को दर्शाता है?

Which expression represents subtracting (2xy) from the sum of the squares of (x) and (y)?

Explanation opens after your attempt
Correct Answer

C. \(x^2+y^2-2xy\)

Step 1

Concept

First the sum of squares is \(x^2+y^2\), and (2xy) is subtracted from it. So \(x^2+y^2-2xy\) is correct.

Step 2

Why this answer is correct

The correct answer is C. \(x^2+y^2-2xy\). First the sum of squares is \(x^2+y^2\), and (2xy) is subtracted from it. So \(x^2+y^2-2xy\) is correct.

Step 3

Exam Tip

पहले वर्गों का योग \(x^2+y^2\) है और उसमें से (2xy) घटाना है। इसलिए \(x^2+y^2-2xy\) सही है।

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कौन सा व्यंजक (y) से (6) अधिक संख्या के वर्ग को दर्शाता है?

Which expression represents the square of the number (6) more than (y)?

Explanation opens after your attempt
Correct Answer

C. ((y+6)2)

Step 1

Concept

The number (6) more than (y) is (y+6). To square the whole sum, write ((y+6)2).

Step 2

Why this answer is correct

The correct answer is C. ((y+6)2). The number (6) more than (y) is (y+6). To square the whole sum, write ((y+6)2).

Step 3

Exam Tip

(6) अधिक संख्या (y+6) है। पूरे योग के वर्ग के लिए ((y+6)2) लिखते हैं।

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कौन सा व्यंजक (x) से (4) कम संख्या के वर्ग को दर्शाता है?

Which expression represents the square of the number (4) less than (x)?

Explanation opens after your attempt
Correct Answer

C. ((x-4)2)

Step 1

Concept

The number (4) less than (x) is (x-4). To square the whole difference, write ((x-4)2).

Step 2

Why this answer is correct

The correct answer is C. ((x-4)2). The number (4) less than (x) is (x-4). To square the whole difference, write ((x-4)2).

Step 3

Exam Tip

(4) कम संख्या (x-4) है। पूरे अंतर के वर्ग के लिए ((x-4)2) लिखते हैं।

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कौन-सा व्यंजक (m) और (n) के अंतर के (5) गुने को दर्शाता है?

Which expression represents five times the difference of (m) and (n)?

Explanation opens after your attempt
Correct Answer

C. (5(m-n))

Step 1

Concept

First the difference (m-n) is formed and then it is multiplied by (5). So (5(m-n)) is correct.

Step 2

Why this answer is correct

The correct answer is C. (5(m-n)). First the difference (m-n) is formed and then it is multiplied by (5). So (5(m-n)) is correct.

Step 3

Exam Tip

पहले अंतर (m-n) बनता है और फिर उसे (5) से गुणा करते हैं। इसलिए (5(m-n)) सही है।

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कौन-सा व्यंजक (x) के वर्ग और (5) के योग के दोगुने को दर्शाता है?

Which expression represents twice the sum of the square of (x) and (5)?

Explanation opens after your attempt
Correct Answer

C. (2\(x^2+5\))

Step 1

Concept

First form the sum \(x^2+5\), then take twice of it. So (2\(x^2+5\)) is correct.

Step 2

Why this answer is correct

The correct answer is C. (2\(x^2+5\)). First form the sum \(x^2+5\), then take twice of it. So (2\(x^2+5\)) is correct.

Step 3

Exam Tip

पहले योग \(x^2+5\) बनेगा और फिर उसका दोगुना लिया जाएगा। इसलिए (2\(x^2+5\)) सही है।

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कौन-सा व्यंजक (r) के दोगुने और (s) के तीन गुने के योग को दर्शाता है?

Which expression represents the sum of twice (r) and three times (s)?

Explanation opens after your attempt
Correct Answer

D. (2r+3s)

Step 1

Concept

Twice (r) is (2r) and three times (s) is (3s). Their sum is (2r+3s).

Step 2

Why this answer is correct

The correct answer is D. (2r+3s). Twice (r) is (2r) and three times (s) is (3s). Their sum is (2r+3s).

Step 3

Exam Tip

(r) का दोगुना (2r) और (s) का तीन गुना (3s) है। योग (2r+3s) होगा।

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कौन-सा व्यंजक (x) और (y) के योग से (6) कम को दर्शाता है?

Which expression represents (6) less than the sum of (x) and (y)?

Explanation opens after your attempt
Correct Answer

C. (x+y-6)

Step 1

Concept

First the sum is (x+y), and (6) is subtracted from it. So (x+y-6) is correct.

Step 2

Why this answer is correct

The correct answer is C. (x+y-6). First the sum is (x+y), and (6) is subtracted from it. So (x+y-6) is correct.

Step 3

Exam Tip

पहले योग (x+y) है और उससे (6) घटाना है। इसलिए (x+y-6) सही है।

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किसी संख्या (p) के वर्ग में उसके (4) गुने को जोड़ने का व्यंजक कौन-सा है?

Which expression represents adding four times a number (p) to its square?

Explanation opens after your attempt
Correct Answer

C. \(p^2+4p\)

Step 1

Concept

The square of the number is \(p^2\) and four times it is (4p). Adding gives \(p^2+4p\).

Step 2

Why this answer is correct

The correct answer is C. \(p^2+4p\). The square of the number is \(p^2\) and four times it is (4p). Adding gives \(p^2+4p\).

Step 3

Exam Tip

संख्या का वर्ग \(p^2\) है और उसका (4) गुना (4p) है। जोड़ने पर \(p^2+4p\) मिलता है।

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(9) में से (t) के वर्ग और (2t) के योग को घटाने का सही व्यंजक कौन सा है?

Which expression represents subtracting the sum of the square of (t) and (2t) from (9)?

Explanation opens after your attempt
Correct Answer

C. (9-\(t^2+2t\))

Step 1

Concept

The whole sum being subtracted is \(t^2+2t\). So it is written in brackets as (9-\(t^2+2t\)).

Step 2

Why this answer is correct

The correct answer is C. (9-\(t^2+2t\)). The whole sum being subtracted is \(t^2+2t\). So it is written in brackets as (9-\(t^2+2t\)).

Step 3

Exam Tip

घटाया जाने वाला पूरा योग \(t^2+2t\) है। इसलिए उसे कोष्ठक में रखकर (9-\(t^2+2t\)) लिखते हैं।

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यदि (k) एक संख्या है, तो उससे (3) अधिक संख्या के वर्ग का व्यंजक कौन सा है?

If (k) is a number, which expression represents the square of the number (3) more than it?

Explanation opens after your attempt
Correct Answer

D. ((k+3)2)

Step 1

Concept

The number (3) more than it is (k+3). For its square, we write ((k+3)2).

Step 2

Why this answer is correct

The correct answer is D. ((k+3)2). The number (3) more than it is (k+3). For its square, we write ((k+3)2).

Step 3

Exam Tip

(3) अधिक संख्या (k+3) है। उसके वर्ग के लिए ((k+3)2) लिखेंगे।

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कौन सा व्यंजक (x) और (y) के योग के वर्ग में से (xy) घटाने को दर्शाता है?

Which expression represents subtracting (xy) from the square of the sum of (x) and (y)?

Explanation opens after your attempt
Correct Answer

A. ((x+y)2-xy)

Step 1

Concept

First the square of the sum (x+y) is formed and then (xy) is subtracted. Brackets are necessary for the square of the whole sum.

Step 2

Why this answer is correct

The correct answer is A. ((x+y)2-xy). First the square of the sum (x+y) is formed and then (xy) is subtracted. Brackets are necessary for the square of the whole sum.

Step 3

Exam Tip

पहले योग (x+y) का वर्ग बनता है और फिर (xy) घटता है। पूरे योग के वर्ग के लिए कोष्ठक जरूरी है।

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किसी संख्या (n) के वर्ग से उसके (5) गुने को घटाने का व्यंजक कौन-सा है?

Which expression represents subtracting (5) times a number (n) from the square of that number?

Explanation opens after your attempt
Correct Answer

B. \(n^2-5n\)

Step 1

Concept

The square of the number is \(n^2\) and (5) times it is (5n). Subtracting gives \(n^2-5n\).

Step 2

Why this answer is correct

The correct answer is B. \(n^2-5n\). The square of the number is \(n^2\) and (5) times it is (5n). Subtracting gives \(n^2-5n\).

Step 3

Exam Tip

संख्या का वर्ग \(n^2\) है और उसका (5) गुना (5n) है। घटाने पर \(n^2-5n\) मिलेगा।

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(n) के वर्ग के तीन गुने में (4) जोड़ने का व्यंजक कौन सा है?

Which expression represents adding (4) to three times the square of (n)?

Explanation opens after your attempt
Correct Answer

A. \(3n^2+4\)

Step 1

Concept

The square of (n) is \(n^2\), and three times it is \(3n^2\). Adding (4) gives \(3n^2+4\).

Step 2

Why this answer is correct

The correct answer is A. \(3n^2+4\). The square of (n) is \(n^2\), and three times it is \(3n^2\). Adding (4) gives \(3n^2+4\).

Step 3

Exam Tip

(n) का वर्ग \(n^2\) है और उसका तीन गुना \(3n^2\) है। उसमें (4) जोड़ने पर \(3n^2+4\) मिलता है।

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(m) और (n) के गुणनफल में से (7) घटाने का सही व्यंजक कौन सा है?

Which expression represents subtracting (7) from the product of (m) and (n)?

Explanation opens after your attempt
Correct Answer

D. (mn-7)

Step 1

Concept

The product of (m) and (n) is (mn). Subtracting (7) from it gives (mn-7).

Step 2

Why this answer is correct

The correct answer is D. (mn-7). The product of (m) and (n) is (mn). Subtracting (7) from it gives (mn-7).

Step 3

Exam Tip

(m) और (n) का गुणनफल (mn) है। उसमें से (7) घटाने पर (mn-7) मिलता है।

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कौन-सा व्यंजक (x) के आधे और (7) के योग को दर्शाता है?

Which expression represents the sum of half of (x) and (7)?

Explanation opens after your attempt
Correct Answer

C. \(\frac{x}{2}+7\)

Step 1

Concept

Half of (x) is \(\frac{x}{2}\), and (7) must be added to it. So \(\frac{x}{2}+7\) is correct.

Step 2

Why this answer is correct

The correct answer is C. \(\frac{x}{2}+7\). Half of (x) is \(\frac{x}{2}\), and (7) must be added to it. So \(\frac{x}{2}+7\) is correct.

Step 3

Exam Tip

(x) का आधा \(\frac{x}{2}\) है और उसमें (7) जोड़ना है। इसलिए \(\frac{x}{2}+7\) सही है।

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(x) और (y) के अंतर के दोगुने का व्यंजक कौन-सा है?

Which expression represents twice the difference of (x) and (y)?

Explanation opens after your attempt
Correct Answer

C. (2(x-y))

Step 1

Concept

First form the difference (x-y), then take twice of it. So (2(x-y)) is correct.

Step 2

Why this answer is correct

The correct answer is C. (2(x-y)). First form the difference (x-y), then take twice of it. So (2(x-y)) is correct.

Step 3

Exam Tip

पहले अंतर (x-y) बनता है फिर उसका दोगुना लेते हैं। इसलिए (2(x-y)) सही है।

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कौन-सा व्यंजक (-3) को (x) से गुणा करके (8) जोड़ने को दर्शाता है?

Which expression represents multiplying (x) by (-3) and then adding (8)?

Explanation opens after your attempt
Correct Answer

B. (-3x+8)

Step 1

Concept

First the product of (-3) and (x) is (-3x). Then adding (8) gives (-3x+8).

Step 2

Why this answer is correct

The correct answer is B. (-3x+8). First the product of (-3) and (x) is (-3x). Then adding (8) gives (-3x+8).

Step 3

Exam Tip

पहले (-3) और (x) का गुणनफल (-3x) है। फिर (8) जोड़ने पर (-3x+8) मिलता है।

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कौन-सा व्यंजक (x) के वर्ग और (x) के तीन गुने के अंतर को दर्शाता है?

Which expression represents the difference between the square of (x) and three times (x)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

The square of (x) is \(x^2\) and three times (x) is (3x). The difference is written as \(x^2-3x\).

Step 2

Why this answer is correct

The correct answer is B. \(x^2-3x\). The square of (x) is \(x^2\) and three times (x) is (3x). The difference is written as \(x^2-3x\).

Step 3

Exam Tip

(x) का वर्ग \(x^2\) है और (x) का तीन गुना (3x) है। अंतर के लिए \(x^2-3x\) लिखेंगे।

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कौन-सा व्यंजक (2y) से (5) अधिक को दर्शाता है?

Which expression represents (5) more than (2y)?

Explanation opens after your attempt
Correct Answer

D. (2y+5)

Step 1

Concept

(5) more means adding (5) to the given expression. So (2y+5) is correct.

Step 2

Why this answer is correct

The correct answer is D. (2y+5). (5) more means adding (5) to the given expression. So (2y+5) is correct.

Step 3

Exam Tip

(5) अधिक का अर्थ दिए गए व्यंजक में (5) जोड़ना है। इसलिए (2y+5) सही है।

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कौन-सा व्यंजक (m) और (n) के योग के (3) गुने को दर्शाता है?

Which expression represents three times the sum of (m) and (n)?

Explanation opens after your attempt
Correct Answer

C. (3(m+n))

Step 1

Concept

The sum must be taken first and then multiplied by (3). So the bracketed form (3(m+n)) is correct.

Step 2

Why this answer is correct

The correct answer is C. (3(m+n)). The sum must be taken first and then multiplied by (3). So the bracketed form (3(m+n)) is correct.

Step 3

Exam Tip

योग पहले लेना है और फिर उसे (3) से गुणा करना है। इसलिए कोष्ठक वाला रूप (3(m+n)) सही है।

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(n) और (12) के योग को बीजीय रूप में कैसे लिखेंगे?

How will you write the sum of (n) and (12) in algebraic form?

Explanation opens after your attempt
Correct Answer

C. (n+12)

Step 1

Concept

Sum means addition. Therefore the correct expression is (n+12).

Step 2

Why this answer is correct

The correct answer is C. (n+12). Sum means addition. Therefore the correct expression is (n+12).

Step 3

Exam Tip

योग का अर्थ जोड़ना है। इसलिए सही व्यंजक (n+12) है।

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किसी संख्या (r) के तीन गुने में (2) घटाने का व्यंजक कौन-सा है?

Which expression represents subtracting (2) from three times a number (r)?

Explanation opens after your attempt
Correct Answer

D. (3r-2)

Step 1

Concept

Three times is (3r), and (2) is subtracted from it. So the correct expression is (3r-2).

Step 2

Why this answer is correct

The correct answer is D. (3r-2). Three times is (3r), and (2) is subtracted from it. So the correct expression is (3r-2).

Step 3

Exam Tip

तीन गुना (3r) होता है और उसमें से (2) घटाते हैं। इसलिए सही व्यंजक (3r-2) है।

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कौन-सा व्यंजक (r) के आधे को दर्शाता है?

Which expression represents half of (r)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Half means dividing by (2). So half of (r) is \(\frac{r}{2}\).

Step 2

Why this answer is correct

The correct answer is D. \(\frac{r}{2}\). Half means dividing by (2). So half of (r) is \(\frac{r}{2}\).

Step 3

Exam Tip

आधा का अर्थ (2) से भाग देना है। इसलिए (r) का आधा \(\frac{r}{2}\) है।

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(m) और (3) के गुणनफल का व्यंजक कौन-सा है?

Which expression represents the product of (m) and (3)?

Explanation opens after your attempt
Correct Answer

D. (3m)

Step 1

Concept

Product means multiplication. The product of (m) and (3) is (3m).

Step 2

Why this answer is correct

The correct answer is D. (3m). Product means multiplication. The product of (m) and (3) is (3m).

Step 3

Exam Tip

गुणनफल का अर्थ गुणा होता है। (m) और (3) का गुणनफल (3m) है।

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(x) और (6) के योग का व्यंजक कौन-सा है?

Which expression represents the sum of (x) and (6)?

Explanation opens after your attempt
Correct Answer

C. (x+6)

Step 1

Concept

Sum means addition. So the sum of (x) and (6) is (x+6).

Step 2

Why this answer is correct

The correct answer is C. (x+6). Sum means addition. So the sum of (x) and (6) is (x+6).

Step 3

Exam Tip

योग का अर्थ जोड़ना होता है। इसलिए (x) और (6) का योग (x+6) है।

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