In a class, there are 40 boys and their average age is 16 years. One boy, aged 1

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In a class, there are 40 boys and their average age is 16 years. One boy, aged 17 years, leaving the class and another joining, the average age becomes 15.875 years The age of the new boy is :

Options:

A . 12 years

B . 14.5 years

C . 15 years

D . 17 years

Answer: Option A

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