In a party every person shakes hands with every other person. If there are 105 handshakes in total, find the number of persons in the party.

CA Foundation · Quantitative Aptitude · MTP · January 2026
In a party every person shakes hands with every other person. If there are 105 handshakes in total, find the number of persons in the party.
(A) A. 15
(B) B. 14
(C) C. 21
(D) D. 22

Suggested Answer and Working Notes:

Correct Answer: Option (A)

A. 15

Topics: Part-A: Business Mathematics

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