The average age of Mr Yuk and his wife is 39. The average of their 3 children is 15. What is the average age of the 5 members of the Yuk family?

Answer 1

in order to find the average age of the family you want to take

Total Age of the Family / Total Members of the Family

in this case that ends up being

(39*2 + 15*3) / 5

=(78 + 45) / 5

=123 / 5

=24.6

meaning that the average age of the 5 members of the Yuk family is 24.6 years

Answer 2

Total of Mr. and Mrs. Yuk's ages is 78.

Total of children's ages is 45

(78 + 45) / 5 = ?