Question

Peter is 8 years younger than Jonne. In 5 years time, Jonne will be twice as old as Peter. How old is Peter now?

Answer 1

Age of Peter = 3 year

Explanation:

Given:

Peter is 8 years younger than Jonne

Assume;

Age of Jonne = a

So,

Age of Peter = a - 8

After 5 years,

2[a - 8 + 5] = a + 5

2a - 6 = a + 5

a = 11

Age of Jonne = 11

Age of Peter = 11 - 8

Age of Peter = 3 year