Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The sum 
upto 20 terms, is equal to
Text Solution
Verified by ExpertsThe correct answer is:
A
Given sum is
First order differences are in A.P.
Thus, we can assume that
Solving 
,
we get 
Hence, general term of given series is
Hence, required sum equals
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