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A function f from integers to integers i...

A function `f` from integers to integers is defined as `f(x)={{:(n+3, n in od d),( n/2,n in e v e n):}` Suppose `k in ` odd and `f(f(f(k)))=27` . Then the sum of digits of `k` is__________

A

3

B

6

C

9

D

12

Text Solution

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The correct Answer is:
B
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