Question

After 7 years, Raj will be twice as old as he was 3 years ago. What is his present age?

Answer 1

Explanation:

let x = present age

x+7 = age 7 years from now

x-3 = age 3 years ago

After 7 years, Raj will be twice as old as he was 3 years ago

x+7=2(x-3)

x+7=2x-6

2x-x=7+6

x=13

Answer 2

Raj is 13.

13-3 = 10

13+7 = 20

10x2 = 20