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equations MCQ Questions for Class 10

equations se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with equations.

Question 1/1 Hard Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 20

\(2.37\overline{5}\) को भिन्न में बदलने के लिए कौन-सा समीकरण-जोड़ा सबसे उपयुक्त है?

Which pair of equations is most suitable for converting \(2.37\overline{5}\) into a fraction?

Explanation opens after your attempt
Correct Answer

A. \(100x=237.555\ldots\), \(1000x=2375.555\ldots\)

Step 1

Concept

In \(x=2.37555\ldots\), (37) is the non-repeating part and (5) is repeating.

Step 2

Why this answer is correct

Taking (100x) and (1000x) aligns the repeating parts. Subtracting then gives the fraction.

Step 3

Exam Tip

First note the length of the non-repeating part and then the repeating part. चरण 1: \(x=2.37555\ldots\) में दशमलव के बाद (37) सांत भाग है और (5) आवर्ती है। चरण 2: (100x) और (1000x) लेने से आवर्ती भाग एक जैसी स्थिति में आ जाता है। फिर घटाने से भिन्न मिलती है। चरण 3: पहले सांत भाग की लंबाई और फिर आवर्ती भाग की लंबाई देखें।

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