Ten years ago, the ages of the members of a joint family of 8 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 yrs. (b) 22 yrs. (c) 23 yrs. (d) 24 yrs.
Ten years ago, the ages of the members of a joint family of 8 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 yrs. (b) 22 yrs. (c) 23 yrs. (d) 24 yrs.
Sum of the ages of 8 members, 10 years ago = 231 years.
Sum of the ages of all members, 7 years ago =
years.
Sum of the ages of all members, 4 years ago =
years.
Sum of the present ages of all 8 members = years.
Current average age =
years = 23.8 years
years.