If the first term of an A.P. is 2 and th...

If the first term of an A.P. is 2 and the sum of first five terms is equal to one fourth of the sum of the next five terms, find the sum of first 30 terms.

A

`-114`

B

`-82`

C

`-112`

D

none of these

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The correct Answer is:

C

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