Question

John’s age in 5 years time will be the same as Jack’s age is now. In two years, Jack will be twice as old as John. How old are they now?

Answer 1

john 2 1/2 years old jack is 7

in 5 years he will be 7 like jack is now

in two years jack is 9 and john is 4.5

Explanation:

You could also say john is 3 and jack 8 in 5 years he is 8 like jack

and in 2 years he is 5 and jack is 10 which is twice the age.

it doesn't work for other ages.