Question

9
A father is now three times as old as he
Five years back, he was four times as id
his son. The age of the son in yea​

Answer 1

Answer:

Let son's present age be x yrs.

Then, father's age = 3x

5 yr ago, father's age = (3x-5) yr

So, 3x-5 = 4(x-5)

3x-5=4x-20

x=15 yrs