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The average age of 9 students and their ...

The average age of 9 students and their teacher is 16 yr. The average age of the first four students is 19yr and that of the last five is 10 yr. The teacher's age is

A

36 years

B

34 years

C

30 years

D

28 years

Text Solution

Verified by Experts

The correct Answer is:
B
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KIRAN PUBLICATION-AVERAGE-TYPE-VIII
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