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number-72 MCQ Questions for Class 10

number-72 se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with number-72.

Question 1/2 Easy Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 7

किस संख्या का अभाज्य गुणनखंडन \(2^3\times3^2\) है?

Which number has prime factorisation \(2^3\times3^2\)?

Explanation opens after your attempt
Correct Answer

A. 72

Step 1

Concept

Calculate \(2^3=8\) and \(3^2=9\).

Step 2

Why this answer is correct

\(8\times9=72\).

Step 3

Exam Tip

Evaluating powers first gives the answer quickly. चरण 1: \(2^3=8\) और \(3^2=9\) निकालें। चरण 2: \(8\times9=72\)। चरण 3: घातों का मान पहले निकालने से उत्तर जल्दी मिलता है।

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Question 2/2 Easy Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 7

संख्या 72 का सही अभाज्य गुणनखंडन क्या है?

What is the correct prime factorisation of 72?

Explanation opens after your attempt
Correct Answer

A. \(2^3\times3^2\)

Step 1

Concept

Write \(72=8\times9\).

Step 2

Why this answer is correct

\(8=2^3\) and \(9=3^2\), so \(72=2^3\times3^2\).

Step 3

Exam Tip

In prime factorisation, break 8 and 9 into prime powers. चरण 1: \(72=8\times9\) लिखें। चरण 2: \(8=2^3\) और \(9=3^2\), इसलिए \(72=2^3\times3^2\)। चरण 3: अभाज्य गुणनखंडन में 8 और 9 को अलग करके लिखें।

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