Let the present age of father is x And the present age of daughter is
x
4
Therefore, five year hence their age will be:
x
4
+5=
1
3
(x+5) 3x + 60 = 4x + 20 ∴ x = 40 So the present age of father is 40, and the present age of daughter is 10. Now the ratio of their ages after 10 years will be.