Latest Other Aptitude Question SOLUTION: 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 duri

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(#M40156015) OTHER Numerical Ability question Algebra Keep an EYE

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?
X A.
21 years
B.
22 years
C.
23 years
D.
24 years
E.
25 years

Asked In Other Palak Grover (8 years ago)

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Read Solution (1) :

Lenin  (8 years ago)

Ten years ago, Added age of family = (Added age of 8 members) =231

After 3 years, Added age of family = 231+ (Increase of age for 3 years) - (age of died member) + (age of new member)
= 231+(8*3)-60+0 = 195

After 3 years, Added age of family = 195 + (Increase of age for 3 years) - (age of died member) + (age of new member)
= 195+24-60+0 = 159

After 4 years (at present), Added age of family = 159 + (Increase of age for 4 years) = 159+32 = 191
So, the current (at present) avg. age of the 8 member family = 191/8 = 23.875 years
so, the answer is "option d. 24 years ".

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