15C 3r = 15C r+3 then 'r' is equal to

CA Foundation · Quantitative Aptitude · MTP · September 2025
15C 3r = 15C r+3 then 'r' is equal to
(A) A. 2
(B) B. 3
(C) C. 4
(D) D. 5

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. 3

Topics: Part-A: Business Mathematics

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