Question

if L. C. M and H. C. F of two number is 4 and 60 respectively then if one number is 20 find the other number full solution

Answer 1

Heya !!!

OOOOPS.....
There is a blunder mistake in the question..
HCF IS NEVER GREATER THAN THE LCM.
So HCF is 4 not 60.
LCM = 60.

This is your answer.....

Let a and b be the two numbers...
a = 20.

HCF (20, b) = 4.
LCM (20, b) = 60.

We know that.....
HCF × LCM = Product of two number.

Therefore....
60 × 4 = 20 × b
240 = 20 × b
b = 12.

Hence the other number is 12.

hope it helps