Question

The sum of the ages of a father and his son is 100 years now. 5 year ago, their ages were in the ratio of 2:1.Find the ratio of the ages of father and son after 10 years

Answer 1

Let s be the son. Then the father would be 100-s. And 2(s-5)=(100-s-5). So:

2s-10=100-s-5

3s=105

s=35

100-s=65

The son is 35. The father is 65. In 10 years the