The ratio of two numbers is 6 : 7 and th

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

HCF and LCM

Question:

The ratio of two numbers is 6 : 7 and their HCF is 3. Their LCM is _____.

Options:

124

128

122

126

Correct Answer:

126

Explanation:

Let the numbers be 6x and 7x.

Then, their HCF =x

So, x=3 .... given

So, the numbers are 6x=18 and 7x =21

LCM of 18 and 21 is 126.