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In a class, there are 40 boys and their ...

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

A

12 years

B

14.5 years

C

15 years

D

17 years

Text Solution

Verified by Experts

The correct Answer is:
D
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