Question

The HCF of the number Y and 45 is 5 If their LCM is 180, what is the value of Y?​

Answer 1

So the numbers are 45 & 20

Explanation:

HCF = 5

LCM =180

Let two numbers be a & b

a= 45

We know that ab= HCF * LCM

putting the values 45 b = 5 * 180

b = 5 * 180 / 45 = 20

So the numbers are 45 & 20