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number-168 MCQ Questions for Class 10

number-168 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-168.

Question 1/2 Easy Mathematics Real Numbers Prime factorisation Class 10 Level 8

किस संख्या का अभाज्य गुणनखंडन \(2^3\times3\times7\) है?

Which number has prime factorisation \(2^3\times3\times7\)?

Explanation opens after your attempt
Correct Answer

A. 168

Step 1

Concept

Calculate \(2^3=8\).

Step 2

Why this answer is correct

\(8\times3\times7=168\).

Step 3

Exam Tip

To get the number from prime factorisation, multiply all factors. चरण 1: \(2^3=8\) निकालें। चरण 2: \(8\times3\times7=168\)। चरण 3: अभाज्य गुणनखंडन से संख्या पाने के लिए सभी गुणनखंडों को गुणा करें।

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Question 2/2 Easy Mathematics Real Numbers Prime factorisation Class 10 Level 8

संख्या 168 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 168?

Explanation opens after your attempt
Correct Answer

A. \(2^3\times3\times7\)

Step 1

Concept

Write \(168=8\times21\).

Step 2

Why this answer is correct

\(8=2^3\) and \(21=3\times7\), so \(168=2^3\times3\times7\).

Step 3

Exam Tip

8 and 21 are composite, so break them further. चरण 1: \(168=8\times21\) लिखें। चरण 2: \(8=2^3\) और \(21=3\times7\), इसलिए \(168=2^3\times3\times7\)। चरण 3: 8 और 21 संयुक्त हैं, इसलिए उन्हें आगे तोड़ें।

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