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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सी संख्या परिमेय संख्या है?

Which number is a rational number?

Explanation opens after your attempt
Correct Answer

A. \(\frac{5}{8}\)

Step 1

Concept

\(\frac{5}{8}\) is a ratio of two integers. A rational number can be written as \(\frac{p}{q}\).

Step 2

Why this answer is correct

The correct answer is A. \(\frac{5}{8}\). \(\frac{5}{8}\) is a ratio of two integers. A rational number can be written as \(\frac{p}{q}\).

Step 3

Exam Tip

\(\frac{5}{8}\) दो पूर्णांकों का अनुपात है। परिमेय संख्या को \(\frac{p}{q}\) रूप में लिखा जाता है।

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Question Hard Mathematics Real Numbers 1: Euclid’s Division Lemma Class 10 Level 1

कौन सा विकल्प (a=5q+r) में (r) का वैध मान नहीं हो सकता?

Which option cannot be a valid value of (r) in (a=5q+r)?

Explanation opens after your attempt
Correct Answer

D. 5

Step 1

Concept

In (a=5q+r), the remainder must satisfy \(0\le r<5\).

Step 2

Why this answer is correct

5 is equal to the divisor, so it cannot be a remainder.

Step 3

Exam Tip

Valid remainders start from 0 and end at one less than the divisor. चरण 1: (a=5q+r) में शेषफल की सीमा \(0\le r<5\) है। चरण 2: 5 भाजक के बराबर है, इसलिए यह शेषफल नहीं हो सकता। चरण 3: वैध शेषफल 0 से शुरू होता है और भाजक से एक कम पर खत्म होता है।

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