Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

HCF and LCM

Question:

If three numbers are in the ratio of 1 : 3 : 7, and their LCM is 336, then their HCF is:

Options:

16

18

10

12

Correct Answer:

16

Explanation:

Three numbers are in the ratio of 1 : 3 : 7

LCM = 1x × 3x  × 7x = 336

x(1 × 3  × 7) = 336

x = 16 = HCF