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not-rational MCQ Questions for Class 10

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5 questions tagged with not-rational.

Question 1/5 Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सी संख्या परिमेय संख्या नहीं है?

Which number is not a rational number?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{34}\)

Step 1

Concept

\(\sqrt{34}\) cannot be written in \(\frac{p}{q}\) form. The other options are rational.

Step 2

Why this answer is correct

The correct answer is A. \(\sqrt{34}\). \(\sqrt{34}\) cannot be written in \(\frac{p}{q}\) form. The other options are rational.

Step 3

Exam Tip

\(\sqrt{34}\) को \(\frac{p}{q}\) रूप में नहीं लिखा जा सकता। बाकी विकल्प परिमेय हैं।

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Question 2/5 Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

कौन सा विकल्प परिमेय संख्या नहीं है?

Which option is not a rational number?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{29}\)

Step 1

Concept

\(\sqrt{29}\) is irrational because (29) is not a perfect square. All others can be written in rational form.

Step 2

Why this answer is correct

The correct answer is A. \(\sqrt{29}\). \(\sqrt{29}\) is irrational because (29) is not a perfect square. All others can be written in rational form.

Step 3

Exam Tip

\(\sqrt{29}\) अपरिमेय है क्योंकि (29) पूर्ण वर्ग नहीं है। बाकी सभी परिमेय रूप में लिखे जा सकते हैं।

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Question 3/5 Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

कौन सा विकल्प वास्तविक संख्या है लेकिन परिमेय नहीं है?

Which option is real but not rational?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{23}\)

Step 1

Concept

\(\sqrt{23}\) is real but irrational because (23) is not a perfect square. So it is not rational.

Step 2

Why this answer is correct

The correct answer is A. \(\sqrt{23}\). \(\sqrt{23}\) is real but irrational because (23) is not a perfect square. So it is not rational.

Step 3

Exam Tip

\(\sqrt{23}\) वास्तविक है लेकिन अपरिमेय है क्योंकि (23) पूर्ण वर्ग नहीं है। इसलिए यह परिमेय नहीं है।

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Question 4/5 Medium Mathematics Real Numbers Irrational numbers Class 10 Level 15

निम्नलिखित में से कौन-सी संख्या परिमेय नहीं है?

Which of the following numbers is not rational?

Explanation opens after your attempt
Correct Answer

D. \(\sqrt{63}\)

Step 1

Concept

Terminating decimals, fractions, and recurring decimals are rational.

Step 2

Why this answer is correct

\(\sqrt{63}=3\sqrt{7}\), and \(\sqrt{7}\) is irrational.

Step 3

Exam Tip

Simplifying the square-root option is a good way to check it. चरण 1: समाप्त दशमलव, भिन्न और आवर्ती दशमलव परिमेय होते हैं। चरण 2: \(\sqrt{63}=3\sqrt{7}\), और \(\sqrt{7}\) अपरिमेय है। चरण 3: वर्गमूल वाले विकल्प को सरल करके जांचना अच्छा तरीका है।

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Question 5/5 Medium Mathematics Real Numbers Irrational numbers Class 10 Level 14

निम्नलिखित में से कौन-सी संख्या परिमेय नहीं है?

Which of the following numbers is not rational?

Explanation opens after your attempt
Correct Answer

C. \(\sqrt{45}\)

Step 1

Concept

Terminating decimals, fractions, and recurring decimals are rational.

Step 2

Why this answer is correct

\(\sqrt{45}=3\sqrt{5}\), and \(\sqrt{5}\) is irrational.

Step 3

Exam Tip

Simplify the square root to identify its nature. चरण 1: समाप्त दशमलव, भिन्न और आवर्ती दशमलव परिमेय होते हैं। चरण 2: \(\sqrt{45}=3\sqrt{5}\), और \(\sqrt{5}\) अपरिमेय है। चरण 3: वर्गमूल को सरल करके उसकी प्रकृति पहचानें।

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