Question

The HCF of two numbers is 5,their LCM is 60 and one of the numbers is 15 find the other

Answer 1

We know that

The relation between H.C.F. and L.C.M. and two numbers is

H.C.F. x L.C.M. = Number 1st x Number 2nd

Given that,

H.C.F. = 5

L.C.M. = 60

Number 1=20

So,

5×60=20×Number 2nd

300=20×Number 2nd

Number 2nd=15

Hence, the number 2 is 15.