Concept-wise Practice

12 180 MCQ Questions for Class 10

12 180 se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with 12 180.

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

यदि दो संख्याओं का महत्तम समापवर्तक (12) और लघुत्तम समापवर्त्य (180) है, तो उनके गुणनफल का अभाज्य गुणनखंड रूप क्या होगा?

If the HCF of two numbers is (12) and their LCM is (180), what is the prime factorised form of their product?

Explanation opens after your attempt
Correct Answer

A. \(2^4\times3^3\times5\)

Step 1

Concept

Product of two numbers (=) HCF \(\times\) LCM.

Step 2

Why this answer is correct

\(12=2^2\times3\) and \(180=2^2\times3^2\times5\), so the product is \(2^4\times3^3\times5\).

Step 3

Exam Tip

Convert given numbers to prime form before multiplying. चरण 1: दो संख्याओं का गुणनफल (=) महत्तम समापवर्तक \(\times\) लघुत्तम समापवर्त्य। चरण 2: \(12=2^2\times3\) और \(180=2^2\times3^2\times5\), इसलिए गुणनफल \(2^4\times3^3\times5\) है। चरण 3: संख्या को पहले अभाज्य रूप में बदलना आसान रहता है।

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