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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 561/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 3

\(\sqrt{54}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{54}\)?

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Correct Answer

B. \(3\sqrt{6}\)

Explanation

Simple Explanation

\(54=9\times6\)। \(\sqrt{9}=3\)। / \(54=9\times6\). \(\sqrt{9}=3\).

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Question 562/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 3

यदि \(a=\sqrt{3}\) और \(b=\sqrt{12}\) तो (ab) क्या है?

If \(a=\sqrt{3}\) and \(b=\sqrt{12}\), what is (ab)?

Explanation opens after your attempt
Correct Answer

C. 6

Explanation

Simple Explanation

\(\sqrt{36}=6\)। गुणन नियम प्रयोग करें। / \(\sqrt{36}=6\). Use the multiplication rule.

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Question 563/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 3

यदि \(x=\sqrt{169}+\sqrt{25}\) तो (x) क्या है?

If \(x=\sqrt{169}+\sqrt{25}\), what is (x)?

Explanation opens after your attempt
Correct Answer

C. 18

Explanation

Simple Explanation

(13+5=18)। वर्गमूल पहले निकालें। / (13+5=18). Evaluate roots first.

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Question 564/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 3

कौन-सा दशमलव समाप्य है?

Which decimal is terminating?

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Correct Answer

B. \(\frac{11}{50}\)

Explanation

Simple Explanation

हर में केवल 2 और 5 हैं। / Denominator contains only 2 and 5.

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Question 565/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 3

यदि (p) परिमेय और (q) अपरिमेय है तो (pq) क्या हो सकता है?

If (p) is rational and (q) is irrational then (pq) can be?

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Correct Answer

C. परिमेय या अपरिमेय

Explanation

Simple Explanation

यदि (p=0) हो तो परिमेय मिलेगा। अन्यथा सामान्यतः अपरिमेय। / If (p=0), the product is rational. Otherwise usually irrational.

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Question 566/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 3

\(\sqrt{320}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{320}\)?

Explanation opens after your attempt
Correct Answer

B. \(8\sqrt{5}\)

Explanation

Simple Explanation

\(320=64\times5\)। \(\sqrt{64}=8\)। / \(320=64\times5\). \(\sqrt{64}=8\).

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Question 568/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 3

कौन-सी संख्या \(\sqrt{20}\) और \(\sqrt{30}\) के बीच है?

Which number lies between \(\sqrt{20}\) and \(\sqrt{30}\)?

Explanation opens after your attempt
Correct Answer

B. 5

Explanation

Simple Explanation

\(\sqrt{20}\approx4.47\) और \(\sqrt{30}\approx5.48\)। / \(\sqrt{20}\approx4.47\) and \(\sqrt{30}\approx5.48\).

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Question 569/600 Expert Mathematics Number Systems Real Numbers Class 9 Level 3

\(\sqrt{147}+\sqrt{75}\) का मान क्या है?

What is the value of \(\sqrt{147}+\sqrt{75}\)?

Explanation opens after your attempt
Correct Answer

C. \(12\sqrt{3}\)

Explanation

Simple Explanation

\(7\sqrt{3}+5\sqrt{3}=12\sqrt{3}\)। / \(7\sqrt{3}+5\sqrt{3}=12\sqrt{3}\).

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