# What will be the Present Age of New Boy? If

The average age of four boys five years ago was 9 years. On including a new boy. the present average age of all the five becomes 15 years. The present age of the new boy is

- 14 years
- 6 years
- 15 years
- 19 years

**Answer: (4) 19 years
Explanation:-**

The average of four boys five years ago = 9 years

Then, the present age of boys = 9 x 4 + 5 x 4 = 36 + 20

= 56 years

the average age of five members = 15

the sum of their ages = 15 x 5 = 75

The age of the new boy = 75 – 56 = 19 years

Hence, the age of the new boy is 19 years.