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The height of Rahul if directly proporti...

The height of Rahul if directly proportional to the square root of his age what will be the height of Rahul at 16 years , if he is 4 fit tall at the age of 9 years ?

A

16 /3 fit .

B

12/3 fit.

C

14/4 fit .

D

18/3 fit.

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