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Mathematics Quiz - Class 9 Mathematics Introduction to Po...

Question 1/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (2x-3) में (x) का गुणांक क्या है?

What is the coefficient of (x) in the expression (2x-3)?

Explanation opens after your attempt

Correct Answer

A. (2)

Step 1

Concept

The number multiplied with the variable is the coefficient. Here the coefficient of (x) is (2).

Step 2

Why this answer is correct

The correct answer is A. (2). The number multiplied with the variable is the coefficient. Here the coefficient of (x) is (2).

Step 3

Exam Tip

चर के साथ गुणा हुई संख्या गुणांक होती है। यहां (x) का गुणांक (2) है।

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Question 2/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि (x=2), तो (4x+3) का मान क्या होगा?

If (x=2), what is the value of (4x+3)?

Explanation opens after your attempt

Correct Answer

C. (11)

Step 1

Concept

Putting (x=2), (4x+3=4(2)+3=11). Multiply first and then add.

Step 2

Why this answer is correct

The correct answer is C. (11). Putting (x=2), (4x+3=4(2)+3=11). Multiply first and then add.

Step 3

Exam Tip

(x=2) रखने पर (4x+3=4(2)+3=11)। पहले गुणा करें फिर जोड़ें।

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Question 3/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (-7a+5) में नियतांक पद कौन सा है?

In the expression (-7a+5), which is the constant term?

Explanation opens after your attempt

Correct Answer

D. (5)

Step 1

Concept

A constant term has no variable. Therefore (5) is the constant term.

Step 2

Why this answer is correct

The correct answer is D. (5). A constant term has no variable. Therefore (5) is the constant term.

Step 3

Exam Tip

नियतांक पद में कोई चर नहीं होता। इसलिए (5) नियतांक पद है।

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Question 4/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (6a-2a+5) का सरल रूप क्या है?

What is the simplified form of (6a-2a+5)?

Explanation opens after your attempt

Correct Answer

B. (4a+5)

Step 1

Concept

For like terms, (6a-2a=4a). So the simplified form is (4a+5).

Step 2

Why this answer is correct

The correct answer is B. (4a+5). For like terms, (6a-2a=4a). So the simplified form is (4a+5).

Step 3

Exam Tip

समान पदों में (6a-2a=4a) होता है। इसलिए सरल रूप (4a+5) है।

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Question 5/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक \(x^2+2x-1\) में कितने पद हैं?

How many terms are there in \(x^2+2x-1\)?

Explanation opens after your attempt

Correct Answer

C. (3)

Step 1

Concept

The terms are \(x^2\), (2x) and (-1). So there are (3) terms.

Step 2

Why this answer is correct

The correct answer is C. (3). The terms are \(x^2\), (2x) and (-1). So there are (3) terms.

Step 3

Exam Tip

पद \(x^2\), (2x) और (-1) हैं। इसलिए कुल (3) पद हैं।

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Question 6/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(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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Question 7/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

निम्न में से कौन सा व्यंजक एकपदी है?

Which of the following expressions is a monomial?

Explanation opens after your attempt

Correct Answer

B. \(-9p^2\)

Step 1

Concept

A monomial has only one term. \(-9p^2\) is one term.

Step 2

Why this answer is correct

The correct answer is B. \(-9p^2\). A monomial has only one term. \(-9p^2\) is one term.

Step 3

Exam Tip

एकपदी में केवल एक पद होता है। \(-9p^2\) एक ही पद है।

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Question 8/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (9-5x) में (x) का गुणांक क्या है?

What is the coefficient of (x) in the expression (9-5x)?

Explanation opens after your attempt

Correct Answer

A. (-5)

Step 1

Concept

The term attached to (x) is (-5x). Therefore the coefficient of (x) is (-5).

Step 2

Why this answer is correct

The correct answer is A. (-5). The term attached to (x) is (-5x). Therefore the coefficient of (x) is (-5).

Step 3

Exam Tip

(x) के साथ लगा पद (-5x) है। इसलिए (x) का गुणांक (-5) है।

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Question 9/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक \(2p^2-3q+8\) में कुल कितने पद हैं?

How many terms are there in the expression \(2p^2-3q+8\)?

Explanation opens after your attempt

Correct Answer

C. (3)

Step 1

Concept

The terms are \(2p^2\), (-3q), and (8). So there are (3) terms.

Step 2

Why this answer is correct

The correct answer is C. (3). The terms are \(2p^2\), (-3q), and (8). So there are (3) terms.

Step 3

Exam Tip

पद \(2p^2\), (-3q) और (8) हैं। इसलिए कुल (3) पद हैं।

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Question 10/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (5r+2r-r) का सरल रूप क्या है?

What is the simplified form of (5r+2r-r)?

Explanation opens after your attempt

Correct Answer

B. (6r)

Step 1

Concept

The coefficients are (5+2-1=6). So the simplified form is (6r).

Step 2

Why this answer is correct

The correct answer is B. (6r). The coefficients are (5+2-1=6). So the simplified form is (6r).

Step 3

Exam Tip

गुणांक (5+2-1=6) हैं। इसलिए सरल रूप (6r) है।

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Question 11/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (8s-3s+4) का सरल रूप क्या है?

What is the simplified form of (8s-3s+4)?

Explanation opens after your attempt

Correct Answer

D. (5s+4)

Step 1

Concept

(8s-3s=5s), and (4) remains separate. So (5s+4) is correct.

Step 2

Why this answer is correct

The correct answer is D. (5s+4). (8s-3s=5s), and (4) remains separate. So (5s+4) is correct.

Step 3

Exam Tip

(8s-3s=5s) और (4) अलग रहता है। इसलिए (5s+4) सही है।

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Question 12/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि (x=5), तो (3x-2) का मान क्या होगा?

If (x=5), what is the value of (3x-2)?

Explanation opens after your attempt

Correct Answer

B. (13)

Step 1

Concept

Putting (x=5), (3x-2=3(5)-2=13). Multiply first and then subtract.

Step 2

Why this answer is correct

The correct answer is B. (13). Putting (x=5), (3x-2=3(5)-2=13). Multiply first and then subtract.

Step 3

Exam Tip

(x=5) रखने पर (3x-2=3(5)-2=13)। पहले गुणा करें फिर घटाएं।

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Question 13/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि (y=4), तो \(y^2-1\) का मान क्या होगा?

If (y=4), what is the value of \(y^2-1\)?

Explanation opens after your attempt

Correct Answer

A. (15)

Step 1

Concept

Putting (y=4), \(y^2-1=4^2-1=15\). Evaluate the power first.

Step 2

Why this answer is correct

The correct answer is A. (15). Putting (y=4), \(y^2-1=4^2-1=15\). Evaluate the power first.

Step 3

Exam Tip

(y=4) रखने पर \(y^2-1=4^2-1=15\)। घात का मान पहले निकालें।

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Question 14/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(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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Question 15/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(2p) से (5) कम को किस व्यंजक से दर्शाया जाएगा?

Which expression represents (5) less than (2p)?

Explanation opens after your attempt

Correct Answer

D. (2p-5)

Step 1

Concept

(5) less means subtracting (5). So (2p-5) is correct.

Step 2

Why this answer is correct

The correct answer is D. (2p-5). (5) less means subtracting (5). So (2p-5) is correct.

Step 3

Exam Tip

(5) कम का अर्थ (5) घटाना है। इसलिए (2p-5) सही है।

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Question 16/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(7) और (k) के गुणनफल को कैसे लिखेंगे?

How will you write the product of (7) and (k)?

Explanation opens after your attempt

Correct Answer

A. (7k)

Step 1

Concept

Product means multiplication. Therefore the product of (7) and (k) is (7k).

Step 2

Why this answer is correct

The correct answer is A. (7k). Product means multiplication. Therefore the product of (7) and (k) is (7k).

Step 3

Exam Tip

गुणनफल का अर्थ गुणा करना है। इसलिए (7) और (k) का गुणनफल (7k) है।

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Question 17/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(t) के वर्ग में से (6) घटाने को कैसे लिखेंगे?

How will you write subtracting (6) from the square of (t)?

Explanation opens after your attempt

Correct Answer

B. \(t^2-6\)

Step 1

Concept

The square of (t) is \(t^2\). Subtracting (6) gives \(t^2-6\).

Step 2

Why this answer is correct

The correct answer is B. \(t^2-6\). The square of (t) is \(t^2\). Subtracting (6) gives \(t^2-6\).

Step 3

Exam Tip

(t) का वर्ग \(t^2\) है। उसमें से (6) घटाने पर \(t^2-6\) मिलता है।

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Question 18/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (-mn+4) में (mn) का गुणांक क्या है?

What is the coefficient of (mn) in the expression (-mn+4)?

Explanation opens after your attempt

Correct Answer

C. (-1)

Step 1

Concept

(-mn) means (-1mn). Therefore the coefficient of (mn) is (-1).

Step 2

Why this answer is correct

The correct answer is C. (-1). (-mn) means (-1mn). Therefore the coefficient of (mn) is (-1).

Step 3

Exam Tip

(-mn) का अर्थ (-1mn) है। इसलिए (mn) का गुणांक (-1) है।

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Question 19/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (4x+5y-2z) में कुल कितने चर हैं?

How many variables are there in the expression (4x+5y-2z)?

Explanation opens after your attempt

Correct Answer

D. (3)

Step 1

Concept

The variables in this expression are (x), (y), and (z). So there are (3) variables.

Step 2

Why this answer is correct

The correct answer is D. (3). The variables in this expression are (x), (y), and (z). So there are (3) variables.

Step 3

Exam Tip

इस व्यंजक में (x), (y) और (z) चर हैं। इसलिए कुल (3) चर हैं।

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Question 20/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

कौन सा नियतांक व्यंजक है?

Which one is a constant expression?

Explanation opens after your attempt

Correct Answer

A. (-12)

Step 1

Concept

A constant expression has no variable. (-12) has only a number.

Step 2

Why this answer is correct

The correct answer is A. (-12). A constant expression has no variable. (-12) has only a number.

Step 3

Exam Tip

नियतांक व्यंजक में कोई चर नहीं होता। (-12) में केवल संख्या है।

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Question 21/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

पद (11xy) में संख्यात्मक गुणांक क्या है?

What is the numerical coefficient in the term (11xy)?

Explanation opens after your attempt

Correct Answer

C. (11)

Step 1

Concept

The numerical coefficient is the number part separate from the variable part. In (11xy), it is (11).

Step 2

Why this answer is correct

The correct answer is C. (11). The numerical coefficient is the number part separate from the variable part. In (11xy), it is (11).

Step 3

Exam Tip

संख्यात्मक गुणांक चर वाले भाग से अलग संख्या होती है। (11xy) में यह (11) है।

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Question 22/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

पद \(3a^2b\) में चर वाला भाग कौन सा है?

In the term \(3a^2b\), which is the variable part?

Explanation opens after your attempt

Correct Answer

D. \(a^2b\)

Step 1

Concept

The variable part remains after leaving the numerical coefficient. Therefore \(a^2b\) is the variable part.

Step 2

Why this answer is correct

The correct answer is D. \(a^2b\). The variable part remains after leaving the numerical coefficient. Therefore \(a^2b\) is the variable part.

Step 3

Exam Tip

चर वाला भाग संख्यात्मक गुणांक को छोड़कर बचता है। इसलिए \(a^2b\) चर वाला भाग है।

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Question 23/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(x) का एक चौथाई किस व्यंजक से दर्शाया जाएगा?

Which expression represents one-fourth of (x)?

Explanation opens after your attempt

Correct Answer

B. \(\frac{x}{4}\)

Step 1

Concept

One-fourth means dividing by (4). Therefore the correct expression is \(\frac{x}{4}\).

Step 2

Why this answer is correct

The correct answer is B. \(\frac{x}{4}\). One-fourth means dividing by (4). Therefore the correct expression is \(\frac{x}{4}\).

Step 3

Exam Tip

एक चौथाई का अर्थ (4) से भाग देना है। इसलिए सही व्यंजक \(\frac{x}{4}\) है।

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Question 24/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (x+2y+x+3y) का सरल रूप क्या है?

What is the simplified form of (x+2y+x+3y)?

Explanation opens after your attempt

Correct Answer

A. (2x+5y)

Step 1

Concept

(x+x=2x) and (2y+3y=5y). So the simplified form is (2x+5y).

Step 2

Why this answer is correct

The correct answer is A. (2x+5y). (x+x=2x) and (2y+3y=5y). So the simplified form is (2x+5y).

Step 3

Exam Tip

(x+x=2x) और (2y+3y=5y)। इसलिए सरल रूप (2x+5y) है।

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Question 25/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (2(a+3)) को खोलने पर क्या मिलेगा?

What do we get by expanding (2(a+3))?

Explanation opens after your attempt

Correct Answer

C. (2a+6)

Step 1

Concept

Multiply (2) by both (a) and (3). Therefore (2(a+3)=2a+6).

Step 2

Why this answer is correct

The correct answer is C. (2a+6). Multiply (2) by both (a) and (3). Therefore (2(a+3)=2a+6).

Step 3

Exam Tip

(2) को (a) और (3) दोनों से गुणा करते हैं। इसलिए (2(a+3)=2a+6)।

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Question 26/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (7x-4y+9) के पद कौन से हैं?

What are the terms of the expression (7x-4y+9)?

Explanation opens after your attempt

Correct Answer

D. (7x) और (-4y) और (9)(7x) and (-4y) and (9)

Step 1

Concept

The sign is part of the term. Therefore the terms are (7x), (-4y), and (9).

Step 2

Why this answer is correct

The correct answer is D. (7x) और (-4y) और (9) / (7x) and (-4y) and (9). The sign is part of the term. Therefore the terms are (7x), (-4y), and (9).

Step 3

Exam Tip

चिह्न पद का भाग होता है। इसलिए पद (7x), (-4y) और (9) हैं।

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Question 27/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (p+8) में (p) का गुणांक क्या है?

What is the coefficient of (p) in (p+8)?

Explanation opens after your attempt

Correct Answer

A. (1)

Step 1

Concept

A single (p) means (1p). Therefore the coefficient is (1).

Step 2

Why this answer is correct

The correct answer is A. (1). A single (p) means (1p). Therefore the coefficient is (1).

Step 3

Exam Tip

अकेले (p) का अर्थ (1p) होता है। इसलिए गुणांक (1) है।

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Question 28/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (-q-6) में (q) का गुणांक क्या है?

What is the coefficient of (q) in (-q-6)?

Explanation opens after your attempt

Correct Answer

B. (-1)

Step 1

Concept

(-q) means (-1q). So the coefficient of (q) is (-1).

Step 2

Why this answer is correct

The correct answer is B. (-1). (-q) means (-1q). So the coefficient of (q) is (-1).

Step 3

Exam Tip

(-q) का अर्थ (-1q) है। इसलिए (q) का गुणांक (-1) है।

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Question 29/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

क्या \(x^2\) और (x) समान पद हैं?

Are \(x^2\) and (x) like terms?

Explanation opens after your attempt

Correct Answer

C. नहीं क्योंकि (x) की घात अलग हैNo because the power of (x) is different

Step 1

Concept

In like terms, the power of the variable must also be the same. \(x^2\) and (x) have different powers.

Step 2

Why this answer is correct

The correct answer is C. नहीं क्योंकि (x) की घात अलग है / No because the power of (x) is different. In like terms, the power of the variable must also be the same. \(x^2\) and (x) have different powers.

Step 3

Exam Tip

समान पदों में चर की घात भी समान होनी चाहिए। \(x^2\) और (x) में घात अलग है।

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Question 30/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (0x+9) का सरल रूप क्या है?

What is the simplified form of (0x+9)?

Explanation opens after your attempt

Correct Answer

D. (9)

Step 1

Concept

(0x=0), so (0x+9=9). Multiplying by zero makes the term zero.

Step 2

Why this answer is correct

The correct answer is D. (9). (0x=0), so (0x+9=9). Multiplying by zero makes the term zero.

Step 3

Exam Tip

(0x=0), इसलिए (0x+9=9)। शून्य से गुणा करने पर पद शून्य हो जाता है।

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Question 31/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक \(x\cdot0\) का मान क्या है?

What is the value of \(x\cdot0\)?

Explanation opens after your attempt

Correct Answer

A. (0)

Step 1

Concept

Multiplying any expression by (0) gives (0). Therefore \(x\cdot0=0\).

Step 2

Why this answer is correct

The correct answer is A. (0). Multiplying any expression by (0) gives (0). Therefore \(x\cdot0=0\).

Step 3

Exam Tip

किसी भी व्यंजक को (0) से गुणा करने पर (0) मिलता है। इसलिए \(x\cdot0=0\)।

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Question 32/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक \(1\cdot a+5\) का सरल रूप क्या है?

What is the simplified form of \(1\cdot a+5\)?

Explanation opens after your attempt

Correct Answer

C. (a+5)

Step 1

Concept

\(1\cdot a=a\). Therefore the simplified form is (a+5).

Step 2

Why this answer is correct

The correct answer is C. (a+5). \(1\cdot a=a\). Therefore the simplified form is (a+5).

Step 3

Exam Tip

\(1\cdot a=a\) होता है। इसलिए सरल रूप (a+5) है।

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Question 33/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि वर्ग की भुजा (x) है, तो उसका परिमाप किस व्यंजक से दर्शाया जाएगा?

If the side of a square is (x), which expression represents its perimeter?

Explanation opens after your attempt

Correct Answer

B. (4x)

Step 1

Concept

The perimeter of a square is the sum of its four equal sides. So the perimeter is (4x).

Step 2

Why this answer is correct

The correct answer is B. (4x). The perimeter of a square is the sum of its four equal sides. So the perimeter is (4x).

Step 3

Exam Tip

वर्ग का परिमाप चारों समान भुजाओं का योग होता है। इसलिए परिमाप (4x) है।

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Question 34/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि आयत की लंबाई (l) और चौड़ाई (3) है, तो परिमाप का व्यंजक क्या होगा?

If the length of a rectangle is (l) and breadth is (3), what is the expression for its perimeter?

Explanation opens after your attempt

Correct Answer

D. (2(l+3))

Step 1

Concept

The perimeter of a rectangle is (2(length+breadth)). Therefore the expression is (2(l+3)).

Step 2

Why this answer is correct

The correct answer is D. (2(l+3)). The perimeter of a rectangle is (2(length+breadth)). Therefore the expression is (2(l+3)).

Step 3

Exam Tip

आयत का परिमाप (2(लंबाई+चौड़ाई)) होता है। इसलिए व्यंजक (2(l+3)) है।

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Question 35/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि एक पेन का मूल्य (p) रुपये है, तो (5) पेन का मूल्य क्या होगा?

If the price of one pen is (p) rupees, what will be the price of (5) pens?

Explanation opens after your attempt

Correct Answer

A. (5p)

Step 1

Concept

If one pen costs (p), then (5) pens cost \(5\cdot p=5p\). In such cases, multiply.

Step 2

Why this answer is correct

The correct answer is A. (5p). If one pen costs (p), then (5) pens cost \(5\cdot p=5p\). In such cases, multiply.

Step 3

Exam Tip

एक पेन का मूल्य (p) है तो (5) पेन का मूल्य \(5\cdot p=5p\) होगा। ऐसी स्थिति में गुणा करें।

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Question 36/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि रीया की आयु (a) वर्ष है, तो (4) वर्ष बाद उसकी आयु क्या होगी?

If Riya's age is (a) years, what will be her age after (4) years?

Explanation opens after your attempt

Correct Answer

C. (a+4)

Step 1

Concept

For future age, add (4) to the present age. So the age will be (a+4).

Step 2

Why this answer is correct

The correct answer is C. (a+4). For future age, add (4) to the present age. So the age will be (a+4).

Step 3

Exam Tip

भविष्य की आयु के लिए वर्तमान आयु में (4) जोड़ते हैं। इसलिए आयु (a+4) होगी।

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Question 37/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(x) और (3) के योग के दोगुने को कैसे लिखेंगे?

How will you write twice the sum of (x) and (3)?

Explanation opens after your attempt

Correct Answer

B. (2(x+3))

Step 1

Concept

First the sum (x+3) is taken. Then the whole sum is multiplied by (2).

Step 2

Why this answer is correct

The correct answer is B. (2(x+3)). First the sum (x+3) is taken. Then the whole sum is multiplied by (2).

Step 3

Exam Tip

पहले योग (x+3) लिया जाता है। फिर पूरे योग को (2) से गुणा करते हैं।

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Question 38/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(10) और (m) के अंतर को किस रूप में लिखेंगे?

How will you write the difference of (10) and (m)?

Explanation opens after your attempt

Correct Answer

D. (10-m)

Step 1

Concept

The difference of (10) and (m) is found by subtracting (m) from (10). So (10-m) is correct.

Step 2

Why this answer is correct

The correct answer is D. (10-m). The difference of (10) and (m) is found by subtracting (m) from (10). So (10-m) is correct.

Step 3

Exam Tip

(10) और (m) का अंतर (10) में से (m) घटाने से मिलेगा। इसलिए (10-m) सही है।

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Question 39/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक \(6x^2+x+1\) में \(x^2\) का गुणांक क्या है?

What is the coefficient of \(x^2\) in \(6x^2+x+1\)?

Explanation opens after your attempt

Correct Answer

A. (6)

Step 1

Concept

The number multiplied with \(x^2\) is (6). Therefore the coefficient of \(x^2\) is (6).

Step 2

Why this answer is correct

The correct answer is A. (6). The number multiplied with \(x^2\) is (6). Therefore the coefficient of \(x^2\) is (6).

Step 3

Exam Tip

\(x^2\) के साथ गुणा हुई संख्या (6) है। इसलिए \(x^2\) का गुणांक (6) है।

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Question 40/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक \(x^2-x\) में नियतांक पद क्या है?

What is the constant term in \(x^2-x\)?

Explanation opens after your attempt

Correct Answer

C. (0)

Step 1

Concept

There is no written term without a variable in this expression. So the constant term is taken as (0).

Step 2

Why this answer is correct

The correct answer is C. (0). There is no written term without a variable in this expression. So the constant term is taken as (0).

Step 3

Exam Tip

इस व्यंजक में बिना चर वाला कोई लिखा हुआ पद नहीं है। इसलिए नियतांक पद (0) माना जाता है।

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Question 41/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (-5) में कितने पद हैं?

How many terms are there in the expression (-5)?

Explanation opens after your attempt

Correct Answer

B. (1)

Step 1

Concept

(-5) is a constant term. So it has only (1) term.

Step 2

Why this answer is correct

The correct answer is B. (1). (-5) is a constant term. So it has only (1) term.

Step 3

Exam Tip

(-5) एक नियतांक पद है। इसलिए इसमें केवल (1) पद है।

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Question 42/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

किस व्यंजक में दो चर हैं?

Which expression has two variables?

Explanation opens after your attempt

Correct Answer

D. (ab+2)

Step 1

Concept

(ab+2) has two variables (a) and (b). So it is an expression with two variables.

Step 2

Why this answer is correct

The correct answer is D. (ab+2). (ab+2) has two variables (a) and (b). So it is an expression with two variables.

Step 3

Exam Tip

(ab+2) में (a) और (b) दो चर हैं। इसलिए यह दो चर वाला व्यंजक है।

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Question 43/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

कौन सा पद (2) घात वाला है?

Which term has power (2)?

Explanation opens after your attempt

Correct Answer

A. \(x^2\)

Step 1

Concept

In \(x^2\), the power of (x) is (2). The power is identified by the number written above the variable.

Step 2

Why this answer is correct

The correct answer is A. \(x^2\). In \(x^2\), the power of (x) is (2). The power is identified by the number written above the variable.

Step 3

Exam Tip

\(x^2\) में (x) की घात (2) है। घात चर के ऊपर लिखी संख्या से पहचानी जाती है।

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Question 44/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

बीजीय व्यंजक में पदों को अलग करने में कौन से चिह्न मुख्य रूप से उपयोग होते हैं?

Which signs are mainly used to separate terms in an algebraic expression?

Explanation opens after your attempt

Correct Answer

C. योग और घटावAddition and subtraction

Step 1

Concept

Terms are generally separated by addition and subtraction signs. The sign should be read with the term.

Step 2

Why this answer is correct

The correct answer is C. योग और घटाव / Addition and subtraction. Terms are generally separated by addition and subtraction signs. The sign should be read with the term.

Step 3

Exam Tip

पद सामान्यतः योग और घटाव के चिह्नों से अलग होते हैं। चिह्न को पद के साथ पढ़ना चाहिए।

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Question 45/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

व्यंजक (3x+4-2x+1) का सरल रूप क्या है?

What is the simplified form of (3x+4-2x+1)?

Explanation opens after your attempt

Correct Answer

B. (x+5)

Step 1

Concept

(3x-2x=x) and (4+1=5). So the simplified form is (x+5).

Step 2

Why this answer is correct

The correct answer is B. (x+5). (3x-2x=x) and (4+1=5). So the simplified form is (x+5).

Step 3

Exam Tip

(3x-2x=x) और (4+1=5)। इसलिए सरल रूप (x+5) है।

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Question 46/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि (a=2) और (b=3), तो (2a+b) का मान क्या होगा?

If (a=2) and (b=3), what is the value of (2a+b)?

Explanation opens after your attempt

Correct Answer

D. (7)

Step 1

Concept

Substituting the values gives (2a+b=2(2)+3=7). Multiply first and then add.

Step 2

Why this answer is correct

The correct answer is D. (7). Substituting the values gives (2a+b=2(2)+3=7). Multiply first and then add.

Step 3

Exam Tip

मान रखने पर (2a+b=2(2)+3=7)। पहले गुणा करें फिर जोड़ें।

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Question 47/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

पद \(5x^2y\) में \(x^2y\) का गुणांक क्या है?

What is the coefficient of \(x^2y\) in the term \(5x^2y\)?

Explanation opens after your attempt

Correct Answer

A. (5)

Step 1

Concept

The number multiplied with \(x^2y\) is (5). Therefore the coefficient is (5).

Step 2

Why this answer is correct

The correct answer is A. (5). The number multiplied with \(x^2y\) is (5). Therefore the coefficient is (5).

Step 3

Exam Tip

\(x^2y\) के साथ गुणा हुई संख्या (5) है। इसलिए गुणांक (5) है।

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Question 48/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

(x) के आधे से (3) अधिक को कैसे लिखेंगे?

How will you write (3) more than half of (x)?

Explanation opens after your attempt

Correct Answer

C. \(\frac{x}{2}+3\)

Step 1

Concept

Half of (x) is \(\frac{x}{2}\). Adding (3) gives \(\frac{x}{2}+3\).

Step 2

Why this answer is correct

The correct answer is C. \(\frac{x}{2}+3\). Half of (x) is \(\frac{x}{2}\). Adding (3) gives \(\frac{x}{2}+3\).

Step 3

Exam Tip

(x) का आधा \(\frac{x}{2}\) है। उसमें (3) जोड़ने पर \(\frac{x}{2}+3\) मिलता है।

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Question 49/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

किस विकल्प में (c) से (2) अधिक का सही व्यंजक है?

Which option gives the correct expression for (2) more than (c)?

Explanation opens after your attempt

Correct Answer

B. (c+2)

Step 1

Concept

(2) more means adding (2). Therefore the expression is (c+2).

Step 2

Why this answer is correct

The correct answer is B. (c+2). (2) more means adding (2). Therefore the expression is (c+2).

Step 3

Exam Tip

(2) अधिक का अर्थ (2) जोड़ना है। इसलिए व्यंजक (c+2) है।

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Question 50/50 Easy Mathematics Introduction to Polynomials Algebraic expressions Class 9 Level 27

यदि (x=0), तो (7x+2) का मान क्या होगा?

If (x=0), what is the value of (7x+2)?

Explanation opens after your attempt

Correct Answer

D. (2)

Step 1

Concept

Putting (x=0), (7x+2=7(0)+2=2). The part multiplied by zero becomes (0).

Step 2

Why this answer is correct

The correct answer is D. (2). Putting (x=0), (7x+2=7(0)+2=2). The part multiplied by zero becomes (0).

Step 3

Exam Tip

(x=0) रखने पर (7x+2=7(0)+2=2)। शून्य से गुणा वाला भाग (0) हो जाता है।

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Class 9 Mathematics - Introduction to Polynomials - Algebraic expressions Easy Quiz

व्यंजक (2x-3) में (x) का गुणांक क्या है?

Concept

Why this answer is correct

Exam Tip

यदि (x=2), तो (4x+3) का मान क्या होगा?

Concept

Why this answer is correct

Exam Tip

व्यंजक (-7a+5) में नियतांक पद कौन सा है?

Concept

Why this answer is correct

Exam Tip

व्यंजक (6a-2a+5) का सरल रूप क्या है?

Concept

Why this answer is correct

Exam Tip

व्यंजक \(x^2+2x-1\) में कितने पद हैं?

Concept

Why this answer is correct

Exam Tip

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

Concept

Why this answer is correct

Exam Tip

निम्न में से कौन सा व्यंजक एकपदी है?

Concept

Why this answer is correct

Exam Tip

व्यंजक (9-5x) में (x) का गुणांक क्या है?

Concept

Why this answer is correct

Exam Tip

व्यंजक \(2p^2-3q+8\) में कुल कितने पद हैं?

Concept

Why this answer is correct

Exam Tip

व्यंजक (5r+2r-r) का सरल रूप क्या है?

Concept

Why this answer is correct

Exam Tip

व्यंजक (8s-3s+4) का सरल रूप क्या है?

Concept

Why this answer is correct

Exam Tip

यदि (x=5), तो (3x-2) का मान क्या होगा?

Concept

Why this answer is correct

Exam Tip

यदि (y=4), तो \(y^2-1\) का मान क्या होगा?

Concept

Why this answer is correct

Exam Tip

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

Concept

Why this answer is correct

Exam Tip

(2p) से (5) कम को किस व्यंजक से दर्शाया जाएगा?

Concept

Why this answer is correct

Exam Tip

(7) और (k) के गुणनफल को कैसे लिखेंगे?

Concept

Why this answer is correct

Exam Tip

(t) के वर्ग में से (6) घटाने को कैसे लिखेंगे?

Concept

Why this answer is correct

Exam Tip

व्यंजक (-mn+4) में (mn) का गुणांक क्या है?

Concept

Why this answer is correct

Exam Tip

व्यंजक (4x+5y-2z) में कुल कितने चर हैं?

Concept

Why this answer is correct

Exam Tip

कौन सा नियतांक व्यंजक है?

Concept

Why this answer is correct