There were 20 boys in a class. The average age increase by 2 months, as a new boy comes in a place of a boy aged 18 years. The age of new boy is?

There were 20 boys in a class. The average age increase by 2 months, a

1.	There were 20 boys in a class. The average age increase by 2 months, as a new boy comes in a place of a boy aged 18 years. The age of new boy is?
A.	17 years 10 months
B.	17 years 5 months
C.	7 years 10 months
D.	16 years 10 months
E.	None of the above
Answer» F.