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least number MCQ Questions for Class 10

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

किस सबसे छोटी संख्या से \(2^2\times3^4\times5^5\) को भाग देने पर पूर्ण घन प्राप्त होगा?

By which smallest number should \(2^2\times3^4\times5^5\) be divided to obtain a perfect cube?

Explanation opens after your attempt
Correct Answer

A. \(2^2\times3\times5^2\)

Step 1

Concept

After division, remaining exponents must be multiples of (3).

Step 2

Why this answer is correct

Remove \(2^2\), remove (3) from \(3^4\), and remove \(5^2\) from \(5^5\).

Step 3

Exam Tip

Reduce each exponent to the nearest lower multiple of (3). चरण 1: भाग देने के बाद बची घातें (3) की गुणज होनी चाहिए। चरण 2: \(2^2\) को हटाना होगा, \(3^4\) से (3) हटाकर \(3^3\) रहेगा, और \(5^5\) से \(5^2\) हटाकर \(5^3\) रहेगा। चरण 3: नीचे की नजदीकी (3) की गुणज तक घात घटाएं।

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