Question

The average age of 7 people in a family is 24 years, If the age of the youngest member of the family is 3 years, what was the average age of the family at the birth of the youngest member?

• A. 24 years
• B. 24.5 years
• C. 25 years
• D. 25.5 years

Answer 1

Answer:

B. 24.5 years

Total age of 7 members = 24 × 7 = 168 years Total age 3 years ago = 168 - (7 × 3) = 147 years The number of members at that time was 6 average age = 147/6 = 24.5 years