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3yr ago, the average age of family of 5 ...

3yr ago, the average age of family of 5 members was 17yr . Even after the birth of a child , the average is same today. Find out the age of child.

A

1yr

B

3yr

C

`2 (1)/(2)` yr

D

2yr

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Verified by Experts

The correct Answer is:
D
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