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, agai ?->(Show Answer!)

1. 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 age of this eight-member joint family is nearest to[CAT 2007]

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By: anil on 05 May 2019 02.29 am

Ten years ago, the total age of the family is 231 years.

Seven years ago, (Just before the death of the first person), the total age of the family would have been 231+8*3 = 231+24 = 255.
After the death of one member and the birth of a child, the total age is 195 years.
Four years ago, after the death of one member and birth of another child, the total age of the family is 195+24-60 = 159 years. The current total age of the family is = 8x4 + 159 = 191 years The average age is 191/8 = 23.875 years = 24 years (approx)

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