Average age of a class of 30 students is 13 years. The average age of a group of 9 students is 12 years and the average age of another group of 10 students is 14 years. What is the average age of the rest of the students?

Average age of a class of 30 students is 13 years. The average age of

1.	Average age of a class of 30 students is 13 years. The average age of a group of 9 students is 12 years and the average age of another group of 10 students is 14 years. What is the average age of the rest of the students?
A.	14.91 years
B.	13 years
C.	13.91 years
D.	16.91 years
E.	12.91 years
Answer» F.

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Average age of a class of 30 students is 13 years. The average age of a group of 9 students is 12 years and the average age of another group of 10 students is 14 years. What is the average age of the rest of the students?

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