Question

In a nursery class of 18 pupils, the average is


`4 (1)/(2)`
years. What is the sum of the ages of pupils?​

Answer 1

The sum of the age of pupils is 81

Answer 2

The sum of the age of pupils is 81

Explanation:

Let sum of age of 18pupils = x

Average ages = 4.5

Average = total/no. of pupil

4.5 = x/18

x = 81