A father said to his son that he was thrice of his age 15 years before and will be twice of his age

M4maths Previous Puzzles

21 Jan 2021 Age

A father said to his son that he was thrice of his age 15 years before and will be twice of his age 10 years hence. Difference of the ages of father and son is

OPtion

1) 24
2) 50
3) 32
4) 35
5) 40
6) 12
7) 22
8) 34
9) 28
10) 38

Solution

Let the age of father is f and that of son is s at present
According to the given conditions
f - 15 = 3 (s-15)
=> f - 3s = -30 (i)
f + 10 = 2 (s+10)
=> f - 2s = 10 (ii)
On solving (i) and (ii), we get f = 90; s = 40

Correct Option: 2 Best Solution (0)