Find the sum of n terms of the A.P., whose n th term is 5n + 1

CA Foundation · Quantitative Aptitude · PYQS · May 2025
Find the sum of n terms of the A.P., whose n th term is 5n + 1
(A) A. n / 2
(B) B. 2n / 7
(C) C. n(7 + 5n) / 2
(D) D. n(7 + 4n) / 2

Suggested Answer and Working Notes:

Correct Answer: Option (C)

C. n(7 + 5n) / 2

Topics: Part-A: Business Mathematics

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