Hard Mathematics Chapter 1: Real Numbers Class 10 Level 11

निम्न में से किस जोड़े का महत्तम समापवर्तक (18) और लघुत्तम समापवर्त्य (540) है?

Which pair has HCF (18) and LCM (540)?

Explanation opens after your attempt
Correct Answer

A. (54) और (180)(54) and (180)

Step 1

Concept

A correct pair must satisfy both HCF and LCM.

Step 2

Why this answer is correct

\(54=18\times3\) and \(180=18\times10\), where (3) and (10) are coprime, so HCF is (18) and LCM is \(18\times3\times10=540\).

Step 3

Exam Tip

In options, check HCF first. चरण 1: सही जोड़े के लिए महत्तम समापवर्तक और लघुत्तम समापवर्त्य दोनों जाँचने होंगे। चरण 2: \(54=18\times3\) और \(180=18\times10\), जहाँ (3) और (10) सहाभाज्य हैं, इसलिए महत्तम समापवर्तक (18) और लघुत्तम समापवर्त्य \(18\times3\times10=540\) है। चरण 3: विकल्पों में पहले महत्तम समापवर्तक जाँचें।

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