in a class, there are 20 boys whose average age is decreased by 2 months, when

Question

in a class, there are 20 boys whose average age is decreased by 2 months, when one boy aged 18 years is replaced by a new boy. the age of the new boy is ?

Options:

A . 12 years 8 month

B . 14 years 8 month

C . 16 years 8 month

D . 18 years 8 month

Answer: Option B
Explanation :

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