### Ten years ago, the ages of the members of a joint family of eight people added up to 231 years. Three years later, one member died at the age of 60 years and a child was born during the same year. After another three years, one more member died, again at 60, and a child was born during the same year. The current average of this eight-member joint family is nearest to-

A. 21 years B. 22 years C. 23 years D. 24 years Answer: Option D

### Solution(By Apex Team)

Sum of the ages of 8 members, 10 years ago = 231 years Sum of the ages of all members, 7 years ago = (231 + 8 × 3 – 60) years = 195 years Sum of the ages of all members, 4 years ago = (195 + 8 × 3 – 60) years = 159 years Sum of the present ages of all 8 members = (159 + 8 × 4) years = 191 years ∴ Current average age = $\Large\frac{191}{8}$ years = 23.8 years ≈ 24 years

A. 20
B. 21
C. 28
D. 32

A. 18
B. 20
C. 24
D. 30

A. 10 years
B. 10.5 years
C. 11 years
D. 12 years