The average age of father and his son is 22 years. The ratio of their ages is 10:1 respectively. What is the age of the son?

Options

A. 24
B. 4
C. 40
D. 14

Answer

B

Explanation

Suppose the age of son is x years
Therefore, age of father = 10 x years
According to qustion
`(10x +x)/(2) = 22`
`rArr 11 x = 44`
`therefore x = (44)/(11) = 4` years
Age of father `= 10 xx 4` = 40 years