Class 9 Mathematics - Number Systems - Irrational numbers Medium Quiz

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किस विकल्प में सभी संख्याएं सांत दशमलव हैं?

In which option are all numbers terminating decimals?

Explanation opens after your attempt
Correct Answer

A. (0.25), (1.125), (3.04)

Step 1

Concept

All numbers in the first option end after a finite number of digits. A terminating decimal has finite digits.

Step 2

Why this answer is correct

The correct answer is A. (0.25), (1.125), (3.04). All numbers in the first option end after a finite number of digits. A terminating decimal has finite digits.

Step 3

Exam Tip

पहले विकल्प की सभी संख्याएं कुछ अंकों के बाद समाप्त हो जाती हैं। सांत दशमलव में अंकों की संख्या सीमित होती है।

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किस विकल्प में दी गई संख्या अपरिमेय हो सकती है?

Which option can represent an irrational number?

Explanation opens after your attempt
Correct Answer

C. \(2.01001000100001\ldots\) बिना निश्चित दोहराव\(2.01001000100001\ldots\) without fixed repetition

Step 1

Concept

A non-terminating decimal without fixed repetition can be irrational. Terminating and recurring decimals are rational.

Step 2

Why this answer is correct

The correct answer is C. \(2.01001000100001\ldots\) बिना निश्चित दोहराव / \(2.01001000100001\ldots\) without fixed repetition. A non-terminating decimal without fixed repetition can be irrational. Terminating and recurring decimals are rational.

Step 3

Exam Tip

बिना निश्चित दोहराव वाला असांत दशमलव अपरिमेय हो सकता है। सांत और आवर्ती दशमलव परिमेय होते हैं।

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Class 9 Mathematics Quiz FAQs

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