Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If S r denotes the sum of r terms of an AP and 
then S c is
Text Solution
Verified by ExpertsThe correct answer is:
A
S a = a 2 c ⇒ 
[2x + (a – 1) d] = a 2 c
⇒ 2x + (a – 1) d = 2ac
Similarly 2x + (b – 1) d = 2bc
d = 2c and x = c
S c = 
[2x + (c – 1)d] = c 3
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