Multiple choice

The average age of 6 sons is 8 years and sons and their father's and mother's average age is 22 years. If the father is 8 years elder than mother, then mother's present age?

  1. 44 years

  2. 52 years

  3. 60 years

  4. 68 years
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total age of 6 sons = 6 × 8 = 48 years. Average of all 8 family members = 22, so their total = 8 × 22 = 176 years. Parents' combined age = 176 - 48 = 128 years. Father is 8 years older than mother: F = M + 8. So M + (M + 8) = 128, giving 2M = 120 or M = 60 years.

Keep practicing — related questions