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Q.
In a joint family, there are 24 members whose age is decreased by 4 months, when one girl aged 24 years is replaced by a new boy. Find the age of the new boy ?
A.
18 years
B.
12 years
C.
15 years
D.
16 years
View Answer
Correct choice: D
Explanation:
Age of new boy = (Age of moved girl) – (Number of family members × Decreased in average) = 24 – 24×4/12 = 24 – 8 = 16 years.
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