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Mathematics Real Numbers MCQ Questions for Class 9

Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.

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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 521/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{196}\div\sqrt{49}\) का मान क्या है?

What is \(\sqrt{196}\div\sqrt{49}\)?

Explanation opens after your attempt
Correct Answer

B. 2

Explanation

Simple Explanation

\(14\div7=2\)। मूलों को अलग-अलग निकालें। / \(14\div7=2\). Evaluate roots separately.

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Question 522/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

कौन-सी संख्या \(\sqrt{17}\) के सबसे निकट है?

Which number is closest to \(\sqrt{17}\)?

Explanation opens after your attempt
Correct Answer

B. 4

Explanation

Simple Explanation

\(\sqrt{17}\approx4.12\)। अनुमान उपयोगी है। / \(\sqrt{17}\approx4.12\). Estimation helps.

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Question 523/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{27}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{27}\)?

Explanation opens after your attempt
Correct Answer

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

Explanation

Simple Explanation

\(27=9\times3\)। पूर्ण वर्ग बाहर लाएँ। / \(27=9\times3\). Bring out the perfect square.

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Question 524/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

कौन-सा अंतर अपरिमेय है?

Which difference is irrational?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{11}-1\)

Explanation

Simple Explanation

अपरिमेय से परिमेय घटाने पर परिणाम अपरिमेय रहता है। / Subtracting a rational from an irrational remains irrational.

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Question 525/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{400}\) का मान क्या है?

What is the value of \(\sqrt{400}\)?

Explanation opens after your attempt
Correct Answer

C. 20

Explanation

Simple Explanation

\(20^2=400\)। वर्गों का अभ्यास करें। / \(20^2=400\). Practice square values.

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Question 526/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{45}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{45}\)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{5}\)

Explanation

Simple Explanation

\(45=9\times5\)। \(\sqrt{9}=3\)। / \(45=9\times5\). \(\sqrt{9}=3\).

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Question 527/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

यदि \(x=\sqrt{36}-\sqrt{25}\) तो (x) क्या है?

If \(x=\sqrt{36}-\sqrt{25}\), what is (x)?

Explanation opens after your attempt
Correct Answer

B. 1

Explanation

Simple Explanation

(6-5=1)। पहले वर्गमूल निकालें। / (6-5=1). Evaluate roots first.

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Question 528/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{81}\times\sqrt{4}\) का मान क्या है?

What is \(\sqrt{81}\times\sqrt{4}\)?

Explanation opens after your attempt
Correct Answer

B. 18

Explanation

Simple Explanation

\(9\times2=18\)। मूलों का गुणन करें। / \(9\times2=18\). Multiply the roots.

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Question 529/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

कौन-सी संख्या \(\sqrt{50}\) और \(\sqrt{64}\) के बीच है?

Which number lies between \(\sqrt{50}\) and \(\sqrt{64}\)?

Explanation opens after your attempt
Correct Answer

B. 7.5

Explanation

Simple Explanation

\(\sqrt{50}\approx7.07\) और \(\sqrt{64}=8\)। 7.5 बीच में है। / \(\sqrt{50}\approx7.07\) and \(\sqrt{64}=8\). 7.5 lies between.

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Question 530/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 2

\(\sqrt{243}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{243}\)?

Explanation opens after your attempt
Correct Answer

B. \(9\sqrt{3}\)

Explanation

Simple Explanation

\(243=81\times3\)। \(\sqrt{81}=9\)। / \(243=81\times3\). \(\sqrt{81}=9\).

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