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Mathematics Real Numbers MCQ Questions for Class 9

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Same chapter ke nearby topics ko revise jarur karein. Exam preparation ke liye yeh topics important hain. jisme niche ke ye 8 Topics hain.

8 topics
01 Practice Topic Rational numbers 51 MCQs 02 Practice Topic Exponents 600 MCQs 03 Practice Topic Number line 600 MCQs 04 Practice Topic Decimal representation 600 MCQs 05 Practice Topic Irrational numbers 600 MCQs 06 Practice Topic Proof of irrationality of square root 2 and square root 3 649 MCQs 07 Practice Topic Square root spiral 650 MCQs 08 Practice Topic General chapter practice 50 MCQs

Real Numbers Practice Questions

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Question 541/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{180}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{180}\)?

Explanation opens after your attempt
Correct Answer

B. \(6\sqrt{5}\)

Explanation

Simple Explanation

\(180=36\times5\)। \(\sqrt{36}=6\)। / \(180=36\times5\). \(\sqrt{36}=6\).

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Question 542/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

यदि \(x=\sqrt{49}+\sqrt{121}\) तो (x) क्या है?

If \(x=\sqrt{49}+\sqrt{121}\), what is (x)?

Explanation opens after your attempt
Correct Answer

C. 18

Explanation

Simple Explanation

(7+11=18)। मूलों का सही मान लें। / (7+11=18). Evaluate the roots correctly.

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Question 543/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{48}\times\sqrt{3}\) का मान क्या है?

What is \(\sqrt{48}\times\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

C. 12

Explanation

Simple Explanation

\(\sqrt{144}=12\)। पहले अंदर गुणा करें। / \(\sqrt{144}=12\). Multiply inside the root first.

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Question 544/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{500}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{500}\)?

Explanation opens after your attempt
Correct Answer

A. \(10\sqrt{5}\)

Explanation

Simple Explanation

\(500=100\times5\)। \(\sqrt{100}=10\)। / \(500=100\times5\). \(\sqrt{100}=10\).

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Question 545/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

यदि \(x=\sqrt{196}-\sqrt{100}\) तो (x) क्या है?

If \(x=\sqrt{196}-\sqrt{100}\), what is (x)?

Explanation opens after your attempt
Correct Answer

C. 4

Explanation

Simple Explanation

(14-10=4)। पहले वर्गमूल निकालें। / (14-10=4). Evaluate the square roots first.

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Question 546/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

कौन-सी संख्या \(\sqrt{11}\) और \(\sqrt{13}\) के बीच है?

Which number lies between \(\sqrt{11}\) and \(\sqrt{13}\)?

Explanation opens after your attempt
Correct Answer

B. 3.5

Explanation

Simple Explanation

\(\sqrt{11}\approx3.32\) और \(\sqrt{13}\approx3.61\)। 3.5 इनके बीच है। / \(\sqrt{11}\approx3.32\) and \(\sqrt{13}\approx3.61\). 3.5 lies between them.

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Question 547/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

यदि \(a=\sqrt{18}\) और \(b=\sqrt{2}\) तो (a+b) क्या है?

If \(a=\sqrt{18}\) and \(b=\sqrt{2}\), what is (a+b)?

Explanation opens after your attempt
Correct Answer

D. \(5\sqrt{2}\)

Explanation

Simple Explanation

\(\sqrt{18}=3\sqrt{2}\)। इसलिए \(3\sqrt{2}+\sqrt{2}=4\sqrt{2}\)। परीक्षा में पहले सरल करें। / \(\sqrt{18}=3\sqrt{2}\). Thus \(3\sqrt{2}+\sqrt{2}=4\sqrt{2}\). Simplify first in exams.

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Question 548/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{363}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{363}\)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{11}\)

Explanation

Simple Explanation

\(363=33\times11=3^2\times11\times11\) नहीं। सही रूप \(363=121\times3\) नहीं है; \(363=3\times121\), इसलिए \(\sqrt{363}=11\sqrt{3}\)। परीक्षा में अभाज्य गुणनखंड जाँचें। / \(363=3\times121\), so \(\sqrt{363}=11\sqrt{3}\). Check factorization carefully in exams.

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Question 549/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

यदि \(x=\sqrt{225}+\sqrt{25}-\sqrt{64}\) तो (x) क्या है?

If \(x=\sqrt{225}+\sqrt{25}-\sqrt{64}\), what is (x)?

Explanation opens after your attempt
Correct Answer

C. 12

Explanation

Simple Explanation

(15+5-8=12)। पहले सभी वर्गमूल ज्ञात करें। / (15+5-8=12). Evaluate all square roots first.

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Question 550/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{192}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{192}\)?

Explanation opens after your attempt
Correct Answer

B. \(8\sqrt{3}\)

Explanation

Simple Explanation

\(192=64\times3\)। \(\sqrt{64}=8\), इसलिए \(\sqrt{192}=8\sqrt{3}\)। पूर्ण वर्ग पहले पहचानें। / \(192=64\times3\). Since \(\sqrt{64}=8\), \(\sqrt{192}=8\sqrt{3}\). Identify the perfect square first.

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