Class 9 Chapter Practice

Mathematics Mix MCQ Questions for Class 9

Related questions grouped automatically for chapter-wise practice. Topics include General chapter practice, Algebraic Identities, Factorisation, Exponents, Visual models of identities.

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Chapter Revision Guide

Class 9 Mathematics Mix Practice

Related questions grouped automatically for chapter-wise practice.

Mix - Topics Covered

Mathematics Mix ke topic-wise MCQs yahan grouped context me milenge. jo aap ko Exam ki preparation me madad milegi. Ye questions exam-oriented hai and students ko concept clarity, quick revision aur board exam preparation kaafi madad karenge. Sabhi se jude MCQs important topics ke anusar arranged hai, taaki aap Mix ko easy tarike se practice aur revise kar sake.

  1. General chapter practice
    49 MCQs
  2. Algebraic Identities
    23 MCQs
  3. Factorisation
    15 MCQs
  4. Exponents
    10 MCQs
  5. Visual models of identities
    7 MCQs
  6. Algebraic Expressions
    5 MCQs
  7. Linear Equations
    5 MCQs
  8. Substitution
    5 MCQs
  9. Coefficients
    4 MCQs
  10. Decimal representation
    4 MCQs
  11. Laws of Exponents
    3 MCQs
  12. Real Numbers
    3 MCQs
  13. Variables and Constants
    3 MCQs
  14. Degree of Polynomial
    2 MCQs
  15. Expansion
    2 MCQs
  16. Like Terms
    2 MCQs
  17. Like and Unlike Terms
    2 MCQs
  18. Simplification
    2 MCQs
  19. Squares and Square Roots
    2 MCQs
  20. Terms of Expressions
    2 MCQs
  21. Types of Expressions
    2 MCQs
  22. Addition of Expressions
    1 MCQs
  23. Constants
    1 MCQs
  24. Number line
    1 MCQs
  25. Subtraction of Expressions
    1 MCQs

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Mathematics Mix MCQ Questions

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व्यंजक (7a-4) में स्थिर पद कौन सा है?

In the expression (7a-4), which is the constant term?

Explanation opens after your attempt
Correct Answer

D. (-4)

Step 1

Concept

A constant term has no variable. Here (-4) has no variable.

Step 2

Why this answer is correct

The correct answer is D. (-4). A constant term has no variable. Here (-4) has no variable.

Step 3

Exam Tip

स्थिर पद वह होता है जिसमें कोई चर नहीं होता। यहाँ (-4) चर के बिना है।

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(5m) में (m) का गुणांक क्या है?

What is the coefficient of (m) in (5m)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

The number multiplied with the variable is called the coefficient. In (5m), the coefficient of (m) is (5).

Step 2

Why this answer is correct

The correct answer is A. (5). The number multiplied with the variable is called the coefficient. In (5m), the coefficient of (m) is (5).

Step 3

Exam Tip

चर के साथ गुणा होने वाली संख्या गुणांक कहलाती है। (5m) में (m) का गुणांक (5) है।

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(3p+2p) का सरलीकृत रूप क्या है?

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

Explanation opens after your attempt
Correct Answer

C. (5p)

Step 1

Concept

Coefficients of like terms are added. So (3p+2p=5p).

Step 2

Why this answer is correct

The correct answer is C. (5p). Coefficients of like terms are added. So (3p+2p=5p).

Step 3

Exam Tip

समान पदों के गुणांकों को जोड़ा जाता है। इसलिए (3p+2p=5p) होता है।

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निम्न में से कौन सा एकपदी है?

Which of the following is a monomial?

Explanation opens after your attempt
Correct Answer

B. (7y)

Step 1

Concept

A monomial has only one term. (7y) is a single term.

Step 2

Why this answer is correct

The correct answer is B. (7y). A monomial has only one term. (7y) is a single term.

Step 3

Exam Tip

एकपदी में केवल एक पद होता है। (7y) एक ही पद है।

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(4x+9) में कितने पद हैं?

How many terms are there in (4x+9)?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

Terms are separated by (+) or (-) signs. (4x) and (9) are two terms.

Step 2

Why this answer is correct

The correct answer is A. (2). Terms are separated by (+) or (-) signs. (4x) and (9) are two terms.

Step 3

Exam Tip

पद (+) या (-) चिह्नों से अलग होते हैं। (4x) और (9) दो पद हैं।

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\(x^2+3x+2\) किस प्रकार का बहुपद है?

What type of polynomial is \(x^2+3x+2\)?

Explanation opens after your attempt
Correct Answer

D. त्रिपदीTrinomial

Step 1

Concept

It has three terms \(x^2\), (3x), and (2). A polynomial with three terms is called a trinomial.

Step 2

Why this answer is correct

The correct answer is D. त्रिपदी / Trinomial. It has three terms \(x^2\), (3x), and (2). A polynomial with three terms is called a trinomial.

Step 3

Exam Tip

इसमें तीन पद \(x^2\), (3x) और (2) हैं। तीन पद वाला बहुपद त्रिपदी कहलाता है।

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(6x-2x) का मान क्या है?

What is the value of (6x-2x)?

Explanation opens after your attempt
Correct Answer

C. (4x)

Step 1

Concept

For like terms, subtract the coefficients. (6x-2x=4x).

Step 2

Why this answer is correct

The correct answer is C. (4x). For like terms, subtract the coefficients. (6x-2x=4x).

Step 3

Exam Tip

समान पदों में गुणांकों को घटाया जाता है। (6x-2x=4x) होता है।

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(2a) और (3b) किस प्रकार के पद हैं?

What type of terms are (2a) and (3b)?

Explanation opens after your attempt
Correct Answer

C. असमान पदUnlike terms

Step 1

Concept

They have different variables, so they are not like terms. Such terms are called unlike terms.

Step 2

Why this answer is correct

The correct answer is C. असमान पद / Unlike terms. They have different variables, so they are not like terms. Such terms are called unlike terms.

Step 3

Exam Tip

इनमें चर अलग हैं इसलिए ये समान पद नहीं हैं। ऐसे पद असमान पद कहलाते हैं।

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यदि (a=2) हो तो \(a^2+1\) का मान क्या है?

If (a=2), what is the value of \(a^2+1\)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

Putting (a=2) gives \(2^2+1=5\). Calculate powers first.

Step 2

Why this answer is correct

The correct answer is A. (5). Putting (a=2) gives \(2^2+1=5\). Calculate powers first.

Step 3

Exam Tip

(a=2) रखने पर \(2^2+1=5\) मिलता है। घात की गणना पहले करें।

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(x+4=9) में (x) का मान क्या है?

In (x+4=9), what is the value of (x)?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

Subtracting (4) from both sides gives (x=5). Keep the equation balanced.

Step 2

Why this answer is correct

The correct answer is B. (5). Subtracting (4) from both sides gives (x=5). Keep the equation balanced.

Step 3

Exam Tip

दोनों पक्षों से (4) घटाने पर (x=5) मिलता है। समीकरण में संतुलन बनाए रखें।

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(3(x+2)) को खोलने पर क्या मिलेगा?

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

Explanation opens after your attempt
Correct Answer

D. (3x+6)

Step 1

Concept

Multiply (3) by both terms. So (3(x+2)=3x+6).

Step 2

Why this answer is correct

The correct answer is D. (3x+6). Multiply (3) by both terms. So (3(x+2)=3x+6).

Step 3

Exam Tip

(3) को दोनों पदों से गुणा करते हैं। इसलिए (3(x+2)=3x+6) होता है।

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(a+a+a) को संक्षिप्त रूप में कैसे लिखेंगे?

How can (a+a+a) be written in short form?

Explanation opens after your attempt
Correct Answer

A. (3a)

Step 1

Concept

The sum of three (a) terms is (3a). Do not confuse addition with powers.

Step 2

Why this answer is correct

The correct answer is A. (3a). The sum of three (a) terms is (3a). Do not confuse addition with powers.

Step 3

Exam Tip

तीन समान (a) पदों का योग (3a) होता है। योग और घात में अंतर रखें।

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(9q) में चर कौन सा है?

Which is the variable in (9q)?

Explanation opens after your attempt
Correct Answer

C. (q)

Step 1

Concept

A variable is a symbol whose value can change. In (9q), (q) is the variable.

Step 2

Why this answer is correct

The correct answer is C. (q). A variable is a symbol whose value can change. In (9q), (q) is the variable.

Step 3

Exam Tip

चर वह प्रतीक है जिसका मान बदल सकता है। (9q) में (q) चर है।

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\(x^3\) की घात कितनी है?

What is the exponent in \(x^3\)?

Explanation opens after your attempt
Correct Answer

D. (3)

Step 1

Concept

In \(x^3\), the number (3) written above (x) is the exponent. The exponent tells the power of the variable.

Step 2

Why this answer is correct

The correct answer is D. (3). In \(x^3\), the number (3) written above (x) is the exponent. The exponent tells the power of the variable.

Step 3

Exam Tip

\(x^3\) में (x) के ऊपर लिखी संख्या (3) घात है। घात चर की शक्ति बताती है।

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(2x+3x+4) का सरलीकृत रूप क्या है?

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

Explanation opens after your attempt
Correct Answer

B. (5x+4)

Step 1

Concept

(2x) and (3x) are like terms. Adding them gives (5x+4).

Step 2

Why this answer is correct

The correct answer is B. (5x+4). (2x) and (3x) are like terms. Adding them gives (5x+4).

Step 3

Exam Tip

(2x) और (3x) समान पद हैं। इन्हें जोड़ने पर (5x+4) मिलता है।

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(4y+1) में (y=5) रखने पर मान क्या होगा?

What is the value of (4y+1) when (y=5)?

Explanation opens after your attempt
Correct Answer

A. (21)

Step 1

Concept

\(4\times5+1=21\). Substitute the value of the variable carefully.

Step 2

Why this answer is correct

The correct answer is A. (21). \(4\times5+1=21\). Substitute the value of the variable carefully.

Step 3

Exam Tip

\(4\times5+1=21\) होता है। चर का मान ध्यान से रखें।

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(10r-3r) का सरलीकृत रूप क्या है?

What is the simplified form of (10r-3r)?

Explanation opens after your attempt
Correct Answer

D. (7r)

Step 1

Concept

Subtract the coefficients (10) and (3) of like terms. The answer is (7r).

Step 2

Why this answer is correct

The correct answer is D. (7r). Subtract the coefficients (10) and (3) of like terms. The answer is (7r).

Step 3

Exam Tip

समान पदों के गुणांक (10) और (3) घटाए जाते हैं। उत्तर (7r) है।

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निम्न में से कौन सा द्विपदी है?

Which of the following is a binomial?

Explanation opens after your attempt
Correct Answer

C. (p-6)

Step 1

Concept

A binomial has two terms. (p-6) has two terms (p) and (-6).

Step 2

Why this answer is correct

The correct answer is C. (p-6). A binomial has two terms. (p-6) has two terms (p) and (-6).

Step 3

Exam Tip

द्विपदी में दो पद होते हैं। (p-6) में (p) और (-6) दो पद हैं।

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(5(x-1)) का विस्तारित रूप क्या है?

What is the expanded form of (5(x-1))?

Explanation opens after your attempt
Correct Answer

B. (5x-5)

Step 1

Concept

Multiply (5) by both (x) and (-1). So (5(x-1)=5x-5).

Step 2

Why this answer is correct

The correct answer is B. (5x-5). Multiply (5) by both (x) and (-1). So (5(x-1)=5x-5).

Step 3

Exam Tip

(5) को (x) और (-1) दोनों से गुणा करें। इसलिए (5(x-1)=5x-5)।

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\(m^2\) और (m) किस प्रकार के पद हैं?

What type of terms are \(m^2\) and (m)?

Explanation opens after your attempt
Correct Answer

C. असमान पदUnlike terms

Step 1

Concept

Like terms have the same variable with the same power. \(m^2\) and (m) have different powers.

Step 2

Why this answer is correct

The correct answer is C. असमान पद / Unlike terms. Like terms have the same variable with the same power. \(m^2\) and (m) have different powers.

Step 3

Exam Tip

समान पदों में चर और उनकी घात समान होती है। \(m^2\) और (m) में घात अलग है।

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(2p=12) में (p) का मान क्या है?

In (2p=12), what is the value of (p)?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

Dividing both sides by (2) gives (p=6). Use division to undo multiplication.

Step 2

Why this answer is correct

The correct answer is A. (6). Dividing both sides by (2) gives (p=6). Use division to undo multiplication.

Step 3

Exam Tip

दोनों पक्षों को (2) से भाग देने पर (p=6) मिलता है। गुणा को हटाने के लिए भाग करें।

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\(x^2+5x\) में (x) का गुणांक क्या है?

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

Explanation opens after your attempt
Correct Answer

D. (5)

Step 1

Concept

In the (x)-term (5x), the coefficient is (5). The term \(x^2\) is considered separately.

Step 2

Why this answer is correct

The correct answer is D. (5). In the (x)-term (5x), the coefficient is (5). The term \(x^2\) is considered separately.

Step 3

Exam Tip

(x) वाले पद (5x) में गुणांक (5) है। \(x^2\) का पद अलग माना जाता है।

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(7b+0) का सरल रूप क्या है?

What is the simplest form of (7b+0)?

Explanation opens after your attempt
Correct Answer

B. (7b)

Step 1

Concept

Adding (0) to any term does not change its value. So (7b+0=7b).

Step 2

Why this answer is correct

The correct answer is B. (7b). Adding (0) to any term does not change its value. So (7b+0=7b).

Step 3

Exam Tip

किसी पद में (0) जोड़ने से उसका मान नहीं बदलता। इसलिए (7b+0=7b)।

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((a+b)+(a-b)) का सरलीकृत रूप क्या है?

What is the simplified form of ((a+b)+(a-b))?

Explanation opens after your attempt
Correct Answer

A. (2a)

Step 1

Concept

(b) and (-b) cancel each other. The remaining sum is (2a).

Step 2

Why this answer is correct

The correct answer is A. (2a). (b) and (-b) cancel each other. The remaining sum is (2a).

Step 3

Exam Tip

(b) और (-b) कट जाते हैं। बचा हुआ योग (2a) है।

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(3x+6) का सामान्य गुणनखंड कौन सा है?

What is the common factor of (3x+6)?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

Both (3x) and (6) are divisible by (3). So the common factor is (3).

Step 2

Why this answer is correct

The correct answer is C. (3). Both (3x) and (6) are divisible by (3). So the common factor is (3).

Step 3

Exam Tip

(3x) और (6) दोनों (3) से विभाजित होते हैं। इसलिए सामान्य गुणनखंड (3) है।

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\(x^2\cdot x^3\) का मान क्या है?

What is \(x^2\cdot x^3\)?

Explanation opens after your attempt
Correct Answer

A. \(x^5\)

Step 1

Concept

When powers with the same base are multiplied, exponents are added. So \(x^2\cdot x^3=x^5\).

Step 2

Why this answer is correct

The correct answer is A. \(x^5\). When powers with the same base are multiplied, exponents are added. So \(x^2\cdot x^3=x^5\).

Step 3

Exam Tip

एक ही आधार की घातों को गुणा करते समय घातें जुड़ती हैं। इसलिए \(x^2\cdot x^3=x^5\)।

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(12t) को (3) से भाग देने पर क्या मिलेगा?

What do we get when (12t) is divided by (3)?

Explanation opens after your attempt
Correct Answer

D. (4t)

Step 1

Concept

Dividing (12) by (3) gives (4). Hence \(12t\div3=4t\).

Step 2

Why this answer is correct

The correct answer is D. (4t). Dividing (12) by (3) gives (4). Hence \(12t\div3=4t\).

Step 3

Exam Tip

(12) को (3) से भाग देने पर (4) मिलता है। इसलिए \(12t\div3=4t\)।

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(x-7=2) में (x) का मान क्या है?

In (x-7=2), what is the value of (x)?

Explanation opens after your attempt
Correct Answer

C. (9)

Step 1

Concept

Adding (7) to both sides gives (x=9). Use addition to undo subtraction.

Step 2

Why this answer is correct

The correct answer is C. (9). Adding (7) to both sides gives (x=9). Use addition to undo subtraction.

Step 3

Exam Tip

दोनों पक्षों में (7) जोड़ने पर (x=9) मिलता है। घटाव हटाने के लिए जोड़ करें।

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(2a+3b) में (a) का गुणांक क्या है?

What is the coefficient of (a) in (2a+3b)?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

In the (a)-term (2a), the coefficient is (2). Always look at the term containing that variable.

Step 2

Why this answer is correct

The correct answer is B. (2). In the (a)-term (2a), the coefficient is (2). Always look at the term containing that variable.

Step 3

Exam Tip

(a) वाले पद (2a) में गुणांक (2) है। हमेशा उसी चर वाला पद देखें।

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(4x+4y) में सामान्य गुणनखंड क्या है?

What is the common factor in (4x+4y)?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

The factor (4) is common in both terms. So the common factor is (4).

Step 2

Why this answer is correct

The correct answer is C. (4). The factor (4) is common in both terms. So the common factor is (4).

Step 3

Exam Tip

दोनों पदों में (4) समान रूप से उपस्थित है। इसलिए सामान्य गुणनखंड (4) है।

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यदि (n=4) हो तो (3n-2) का मान क्या होगा?

If (n=4), what is the value of (3n-2)?

Explanation opens after your attempt
Correct Answer

D. (10)

Step 1

Concept

\(3\times4-2=10\). Do multiplication first and then subtraction.

Step 2

Why this answer is correct

The correct answer is D. (10). \(3\times4-2=10\). Do multiplication first and then subtraction.

Step 3

Exam Tip

\(3\times4-2=10\) होता है। पहले गुणा फिर घटाव करें।

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\(a^2+2a+1\) में उच्चतम घात क्या है?

What is the highest power in \(a^2+2a+1\)?

Explanation opens after your attempt
Correct Answer

A. (2)

Step 1

Concept

The greatest exponent in the polynomial is (2). This is its degree.

Step 2

Why this answer is correct

The correct answer is A. (2). The greatest exponent in the polynomial is (2). This is its degree.

Step 3

Exam Tip

बहुपद में सबसे बड़ी घात (2) है। यही इसकी घात मानी जाती है।

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(8k-8) में सामान्य गुणनखंड निकालने पर क्या मिलेगा?

What do we get by taking the common factor from (8k-8)?

Explanation opens after your attempt
Correct Answer

C. (8(k-1))

Step 1

Concept

(8) is common in both terms. So (8k-8=8(k-1)).

Step 2

Why this answer is correct

The correct answer is C. (8(k-1)). (8) is common in both terms. So (8k-8=8(k-1)).

Step 3

Exam Tip

दोनों पदों में (8) सामान्य है। इसलिए (8k-8=8(k-1))।

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(2(x+3)+x) का सरल रूप क्या है?

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

Explanation opens after your attempt
Correct Answer

A. (3x+6)

Step 1

Concept

First expand (2(x+3)=2x+6). Then (2x+x=3x).

Step 2

Why this answer is correct

The correct answer is A. (3x+6). First expand (2(x+3)=2x+6). Then (2x+x=3x).

Step 3

Exam Tip

पहले (2(x+3)=2x+6) करें। फिर (2x+x=3x) मिलेगा।

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(y/4=3) में (y) का मान क्या है?

In (y/4=3), what is the value of (y)?

Explanation opens after your attempt
Correct Answer

B. (12)

Step 1

Concept

Multiplying both sides by (4) gives (y=12). Use multiplication to undo division.

Step 2

Why this answer is correct

The correct answer is B. (12). Multiplying both sides by (4) gives (y=12). Use multiplication to undo division.

Step 3

Exam Tip

दोनों पक्षों को (4) से गुणा करने पर (y=12) मिलता है। भाग हटाने के लिए गुणा करें।

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\(p^0\) का मान क्या है यदि \(p\neq0\)?

What is the value of \(p^0\) if \(p\neq0\)?

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Correct Answer

C. (1)

Step 1

Concept

The zero power of any non-zero number or variable is (1). This is a basic exponent rule.

Step 2

Why this answer is correct

The correct answer is C. (1). The zero power of any non-zero number or variable is (1). This is a basic exponent rule.

Step 3

Exam Tip

किसी भी अशून्य संख्या या चर की शून्य घात (1) होती है। यह घात नियम का मूल तथ्य है।

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(4a+5-2a+1) का सरलीकृत रूप क्या है?

What is the simplified form of (4a+5-2a+1)?

Explanation opens after your attempt
Correct Answer

D. (2a+6)

Step 1

Concept

(4a-2a=2a) and (5+1=6). Combine like terms separately.

Step 2

Why this answer is correct

The correct answer is D. (2a+6). (4a-2a=2a) and (5+1=6). Combine like terms separately.

Step 3

Exam Tip

(4a-2a=2a) और (5+1=6) होता है। समान पदों को अलग अलग जोड़ें।

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(6(x+1)) को फैलाने पर कौन सा रूप मिलेगा?

Which form is obtained by expanding (6(x+1))?

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Correct Answer

A. (6x+6)

Step 1

Concept

Multiply (6) by both (x) and (1). The answer is (6x+6).

Step 2

Why this answer is correct

The correct answer is A. (6x+6). Multiply (6) by both (x) and (1). The answer is (6x+6).

Step 3

Exam Tip

(6) को (x) और (1) दोनों से गुणा करें। उत्तर (6x+6) है।

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(11c) में (c) का गुणांक क्या है?

What is the coefficient of (c) in (11c)?

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Correct Answer

C. (11)

Step 1

Concept

(11) is multiplied by (c). Therefore the coefficient is (11).

Step 2

Why this answer is correct

The correct answer is C. (11). (11) is multiplied by (c). Therefore the coefficient is (11).

Step 3

Exam Tip

(c) के साथ (11) गुणा हो रहा है। इसलिए गुणांक (11) है।

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\(a^2-a^2+5\) का सरल रूप क्या है?

What is the simplest form of \(a^2-a^2+5\)?

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Correct Answer

B. (5)

Step 1

Concept

\(a^2-a^2=0\). Therefore only (5) remains.

Step 2

Why this answer is correct

The correct answer is B. (5). \(a^2-a^2=0\). Therefore only (5) remains.

Step 3

Exam Tip

\(a^2-a^2=0\) होता है। इसलिए केवल (5) बचता है।

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(2x+3=11) में (x) का मान क्या है?

In (2x+3=11), what is the value of (x)?

Explanation opens after your attempt
Correct Answer

C. (4)

Step 1

Concept

First subtract (3) from both sides and then divide by (2). This gives (x=4).

Step 2

Why this answer is correct

The correct answer is C. (4). First subtract (3) from both sides and then divide by (2). This gives (x=4).

Step 3

Exam Tip

पहले दोनों पक्षों से (3) घटाएँ फिर (2) से भाग दें। इससे (x=4) मिलता है।

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\(x+x^2\) में कितने पद हैं?

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

Explanation opens after your attempt
Correct Answer

D. (2)

Step 1

Concept

(x) and \(x^2\) are two different terms. Different powers make them separate terms.

Step 2

Why this answer is correct

The correct answer is D. (2). (x) and \(x^2\) are two different terms. Different powers make them separate terms.

Step 3

Exam Tip

(x) और \(x^2\) दो अलग पद हैं। घात अलग होने से वे अलग पद माने जाते हैं।

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यदि (b=1) हो तो (7b+8) का मान क्या होगा?

If (b=1), what is the value of (7b+8)?

Explanation opens after your attempt
Correct Answer

A. (15)

Step 1

Concept

\(7\times1+8=15\). Multiplying by (1) does not change the number.

Step 2

Why this answer is correct

The correct answer is A. (15). \(7\times1+8=15\). Multiplying by (1) does not change the number.

Step 3

Exam Tip

\(7\times1+8=15\) होता है। (1) से गुणा करने पर संख्या नहीं बदलती।

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(9x+3x-2x) का सरल रूप क्या है?

What is the simplified form of (9x+3x-2x)?

Explanation opens after your attempt
Correct Answer

B. (10x)

Step 1

Concept

The value of the coefficients (9+3-2) is (10). Therefore the answer is (10x).

Step 2

Why this answer is correct

The correct answer is B. (10x). The value of the coefficients (9+3-2) is (10). Therefore the answer is (10x).

Step 3

Exam Tip

गुणांकों (9+3-2) का मान (10) है। इसलिए उत्तर (10x) है।

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\(2m\cdot4m\) का परिणाम क्या है?

What is the result of \(2m\cdot4m\)?

Explanation opens after your attempt
Correct Answer

C. \(8m^2\)

Step 1

Concept

\(2\times4=8\) and \(m\cdot m=m^2\). Therefore the answer is \(8m^2\).

Step 2

Why this answer is correct

The correct answer is C. \(8m^2\). \(2\times4=8\) and \(m\cdot m=m^2\). Therefore the answer is \(8m^2\).

Step 3

Exam Tip

\(2\times4=8\) और \(m\cdot m=m^2\) होता है। इसलिए उत्तर \(8m^2\) है।

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(a+2=2+a) कौन सा गुण दर्शाता है?

Which property is shown by (a+2=2+a)?

Explanation opens after your attempt
Correct Answer

D. क्रमविनिमेय गुणCommutative property

Step 1

Concept

In addition, changing the order of terms does not change the sum. This is the commutative property.

Step 2

Why this answer is correct

The correct answer is D. क्रमविनिमेय गुण / Commutative property. In addition, changing the order of terms does not change the sum. This is the commutative property.

Step 3

Exam Tip

जोड़ में पदों का क्रम बदलने से योग नहीं बदलता। यह क्रमविनिमेय गुण है।

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(3q-3q) का मान क्या है?

What is the value of (3q-3q)?

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Correct Answer

A. (0)

Step 1

Concept

Subtracting a term from itself gives (0). Hence (3q-3q=0).

Step 2

Why this answer is correct

The correct answer is A. (0). Subtracting a term from itself gives (0). Hence (3q-3q=0).

Step 3

Exam Tip

किसी पद में से वही पद घटाने पर (0) मिलता है। इसलिए (3q-3q=0)।

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(5s+2) में (s=2) रखने पर मान क्या होगा?

What is the value of (5s+2) when (s=2)?

Explanation opens after your attempt
Correct Answer

B. (12)

Step 1

Concept

\(5\times2+2=12\). After substitution, calculate in order.

Step 2

Why this answer is correct

The correct answer is B. (12). \(5\times2+2=12\). After substitution, calculate in order.

Step 3

Exam Tip

\(5\times2+2=12\) होता है। प्रतिस्थापन के बाद क्रम से गणना करें।

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\(x^2-9\) किस पहचान से संबंधित है?

Which identity is related to \(x^2-9\)?

Explanation opens after your attempt
Correct Answer

C. \(a^2-b^2\)

Step 1

Concept

\(x^2-9\) can be written as \(x^2-3^2\). This matches the identity \(a^2-b^2\).

Step 2

Why this answer is correct

The correct answer is C. \(a^2-b^2\). \(x^2-9\) can be written as \(x^2-3^2\). This matches the identity \(a^2-b^2\).

Step 3

Exam Tip

\(x^2-9\) को \(x^2-3^2\) लिखा जा सकता है। यह \(a^2-b^2\) की पहचान है।

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(3x+5) में चर कौन-सा है?

Which is the variable in (3x+5)?

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Correct Answer

B. (x)

Step 1

Concept

A variable is a quantity whose value can change. In exams identify the letter part first.

Step 2

Why this answer is correct

The correct answer is B. (x). A variable is a quantity whose value can change. In exams identify the letter part first.

Step 3

Exam Tip

चर वह राशि है जिसका मान बदल सकता है। परीक्षा में अक्षर वाले भाग को पहले पहचानें।

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FAQs

Mathematics Mix FAQs

What will I learn in Mix?

Related questions grouped automatically for chapter-wise practice. Topics include General chapter practice, Algebraic Identities, Factorisation, Exponents, Visual models of identities.

How should I practice this Mathematics chapter?

Start with Easy MCQs, review explanations after every answer, then move to Medium, Hard and Expert timed quizzes for stronger exam preparation.

Are topic-wise questions available?

Yes, this page includes topic-wise practice such as General chapter practice, Algebraic Identities, Factorisation, Exponents, Visual models of identities, Algebraic Expressions.