There were 24 students in a class. One of them, who was 18 years old, left the c

Question

There were 24 students in a class. One of them, who was 18 years old, left the class and his place was filled up by a newcomer. If the average of the class thereby, was lowered by one month, the age of the newcomer is-

Options:

A . 14 years

B . 15 years

C . 16 years

D . 17 years

Answer: Option C

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