Question

The oldest child in a family of four children is twice as old as the yougest. The two middle children are 12 and 15 years old. If the average age of the children is 12.75 , how old is the youngest child?

Answer 1

8 years old

Explanation:

oldest= 16

8+12+15+16= 51

51/4 = 12.73 ( average)