Three numbers are in the ratio 1 : 2 : 3 and their H.C.F is 12. The numbers are

A 4, 8, 12

B 5, 10, 15

C 10, 20, 30

D 12, 24, 36

Correct Answer: Option D

Let the required numbers be x, 2x, 3x. Then, their H.C.F =x. so, x= 12

Therefore, The numbers are 12, 24, 36