The average age of 20 boys in a class is 12 years. 5 new boys are admitted to the class whose average age is 7 years. The average age of the boys in the class becomes

The average age of 20 boys in a class is 12 years. 5 new boys are admi

1.	The average age of 20 boys in a class is 12 years. 5 new boys are admitted to the class whose average age is 7 years. The average age of the boys in the class becomes
A.	8.2 years
B.	9.5 years
C.	12.5 years
D.	11 years
Answer» E.

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The average age of 20 boys in a class is 12 years. 5 new boys are admitted to the class whose average age is 7 years. The average age of the boys in the class becomes

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