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Let S(n) denote the sum of first n terms...

Let `S_(n)` denote the sum of first n terms of an AP and `S_(2n) = 3S_(n)`. If `S_(3n) = k S_(n)`, then the value of k is equal to

A

4

B

5

C

6

D

7

Text Solution

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The correct Answer is:
C
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