Question

the average of 15 pupils in a room is 11. if a man of 27 years enter the room. what will be the new average age?​

Answer 1

12

Explanation:

→ Find the total age of the children

15 × 11 = 165

→ Add the mans age

165 + 27 = 192

→ Divide by 16

192 ÷ 16 = 12