Question

The average age of three children in the Smith family is 11. If the first two children are 14 and 12, how old is the youngest child?

Answer 1

Answer: 7

Explanation:

If the average is 11

the number has to add up to 33 which is divisible by 3 and give you the average 11

14+12= 26

14+12=26/2=13

13- 6= 7

14+ 12 + 7= 33/3= 11