Question

The average age of 6 students is 11 years. If two more students of age 14 and 16 years old join their average will become.

1. 13 years

2. 12 years l

3. 12 :1/2 years

4. 11:1/2

Answer 1

Step-by-step explanation:

The average age of 6 students is

11 year's

therefore the sum of the ages of all

6 of them 6 × 11 = 66 year's.

now two new students join to them

their age was 14 and 16 year's

then,

the new sum of the ages of all 8 of them

is 66 + 14 + 16 = 96

Hence Required average is

average = 96/8

average = 12 year's.