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If 10^n+3xx4^(n+2)+lambda is divisible b...

If `10^n+3xx4^(n+2)+lambda` is divisible by 9 or all `n N` , then the least positive integral value of `lambda` is `5` b. `3` c. `7` d. `1`

A

5

B

3

C

7

D

1

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