The sum of progression (a+b), a, (a−b)........n term is
CA Foundation · Quantitative Aptitude · RTP · January 2026
The sum of progression (a+b), a, (a−b)........n term is
Suggested Answer and Working Notes:
Correct Answer: Option (B)
B. n / 2 [2a+(3-n)b]
Topics: Part-A: Business Mathematics
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