A father is 2 times older than his son. 10 years ago, he was 3 times older than his son. How old are they now.

Question

i want to know the present ages of both the father and his son 

Answer 1

Son:X

Father 2x

 

Ten years ago he was tree times older than his son.

2x-10 = 3(x-10)

 

2x-10 = 3x - 30

0 = 3x - 30 - 2x + 10

0 = x - 20

x = 20

 

Son is 20. Father is 40.

Ten years ago, Son was 10 and Father was 30.