The ratio of two numbers is 3:5 and their HCF is 12. What is their LCM?

Topic: Number System
Subtopic: HCF and LCM

A120

B150

C180

D240

Explanation

The numbers are 3 * 12 = 36 and 5 * 12 = 60. LCM = HCF * product of coprime ratios = 12 * 3 * 5 = 180.

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