Hard Mathematics Chapter 1: Real Numbers Class 10 Level 11

दो संख्याओं का महत्तम समापवर्तक (30) और लघुत्तम समापवर्त्य (900) है। यदि वे संख्याएँ (30a) और (30b) हैं, तो (a) और (b) के बारे में कौन-सा कथन सही है?

The HCF of two numbers is (30) and their LCM is (900). If the numbers are (30a) and (30b), which statement about (a) and (b) is correct?

Explanation opens after your attempt
Correct Answer

A. (a) और (b) का गुणनफल (30) और वे सहाभाज्य होंगेProduct of (a) and (b) is (30) and they are coprime

Step 1

Concept

If HCF is (30), the numbers can be written as (30a) and (30b), where (a) and (b) are coprime.

Step 2

Why this answer is correct

LCM becomes (30ab=900), so (ab=30).

Step 3

Exam Tip

Factor out the HCF to simplify such problems. चरण 1: यदि महत्तम समापवर्तक (30) है, तो संख्याएँ (30a) और (30b) लिखी जा सकती हैं जहाँ (a) और (b) सहाभाज्य होते हैं। चरण 2: लघुत्तम समापवर्त्य (30ab=900), इसलिए (ab=30)। चरण 3: ऐसे प्रश्नों में महत्तम समापवर्तक को बाहर निकालकर सोचें।

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The correct answer is A. (a) और (b) का गुणनफल (30) और वे सहाभाज्य होंगे / Product of (a) and (b) is (30) and they are coprime.

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