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number-42 MCQ Questions for Class 10

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2 questions tagged with number-42.

Question 1/2 Easy Mathematics Real Numbers Prime factorisation Class 10 Level 7

किस संख्या का अभाज्य गुणनखंडन \(2\times3\times7\) है?

Which number has prime factorisation \(2\times3\times7\)?

Explanation opens after your attempt
Correct Answer

A. 42

Step 1

Concept

The prime factors are given.

Step 2

Why this answer is correct

\(2\times3\times7=42\).

Step 3

Exam Tip

When no power is written, each prime is taken once. चरण 1: अभाज्य गुणनखंड दिए गए हैं। चरण 2: \(2\times3\times7=42\)। चरण 3: जब घात न हो तो प्रत्येक अभाज्य एक बार लिया जाता है।

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Question 2/2 Easy Mathematics Real Numbers Prime factorisation Class 10 Level 7

संख्या 42 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 42?

Explanation opens after your attempt
Correct Answer

A. \(2\times3\times7\)

Step 1

Concept

Write \(42=6\times7\).

Step 2

Why this answer is correct

\(6=2\times3\), so \(42=2\times3\times7\).

Step 3

Exam Tip

6 is composite, so do not keep it in the final answer. चरण 1: \(42=6\times7\) लिखें। चरण 2: \(6=2\times3\), इसलिए \(42=2\times3\times7\)। चरण 3: 6 संयुक्त है, इसलिए उसे अंतिम उत्तर में न रखें।

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