Question

Two numbers are in the ratio 5 : 7. If their h.C.F. Is 4, find their lcm.

Answer 1

Let the numbers be 3x and 4x. Then, their H.C.F. = x. So, x = 4.

So, the numbers 12 and 16.

L.C.M. of 12 and 16 = 48.