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If (10)^9 + 2(11)^1 (10)^8 + 3(11)^2 (10...

If `(10)^9 + 2(11)^1 (10)^8 + 3(11)^2 (10)^7+..+10(11)^9 = k(10)^9` then k is equal to :

A

100

B

110

C

121/10

D

441/100

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The correct Answer is:
A
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