Question

The average age of a family of 8 members is 24 years. if the age of the youngest member be 6 years, the average age of the family at the birth of the youngest member was?

Answer 1

5x=120 —-> 5x=120-5x8 so 5x=80 so x=16.

Average age is 16. This assumes you are counting the youngest as a person of zero years old rather than someone who is about to be born, so one less family member.

Answer 2

Answer:

21.42 years

since the age of 8 members is 24 yrs