Question

The ratio of ages of father and son is 9:2. If the father is 45 years old, find the son ​

Answer 1

The age of his son is 10 years

Explanation:

Think x is the age of his son

The age of his son is

=>45/x=9/2

=>9x=90

=>x=90/9

therefore

x=10

The his of son is 10 years

Answer 2

x = 10

Explanation:

9 is to 45 as 2 is to x

9 ---- 45

2 ---- x

x = 2 . 45 / 9

x = 10