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S = n xx 10^(6m) + n xx 10^(6m - 1) + n ...

`S = n xx 10^(6m) + n xx 10^(6m - 1) + n xx 10^(6m-2)+ "…." + nxx 10 + n - 10 m in I`, n = single digit `+ve` integer. Then the remainder if
(1) S is divided by 13 is a , (2) It S is divided by 11 is b , (3) It S is divided by 7 is c a+b+c+ =

A

5

B

6

C

7

D

8

Text Solution

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The correct Answer is:
A
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