The sum of the first n terms of an A.P is 3n 2 -2n+1. The common difference is

CA Foundation · Quantitative Aptitude · MTP · September 2026
The sum of the first n terms of an A.P is 3n 2 -2n+1. The common difference is
(A) A. 3
(B) B. 4
(C) C. 6
(D) D. 5

Suggested Answer and Working Notes:

Correct Answer: Option (D)

D. 5

Topics: Part-A: Business Mathematics

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