1.

 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.Find the age of new boy.

A. 11 years 10 months
B. 12 years 2 months
C. 13 years 6 months
D. 14 years 8 months
Answer» E.


Discussion

No Comment Found