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The average age of 40 students in a clas...

The average age of 40 students in a class Is 12 years. When the age of teacher is included, the average increases by 1 year. The teacher's age is:

A

51 years

B

53 years

C

68 years

D

48 years

Text Solution

Verified by Experts

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