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10^n+3(4^(n+2))+5 is divisible by (n in ...

`10^n+3(4^(n+2))+5` is divisible by `(n in N)`

A

7

B

5

C

9

D

7

Text Solution

Verified by Experts

`10^n+3(4^(n+2))+5`
Taking `n=2,10^2+3xx4^4+5=100+768+5=873`
Therefore , this is divisible by 9.
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