Latest TCS Aptitude Question SOLUTION: 19 people(a1,a2......a19)are invited to a party. The host and the hostess shake hands with each invitee and also with each other. The invitee shake hands in a circular fashion, i.e

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19 people(a1,a2......a19)are invited to a party. The host and the
hostess shake hands with each invitee and also with each other. The
invitee shake hands in a circular fashion, i.e. the
pairs(a1,a1),(a2,a3).........(a18,a19),(a19,a1)shake hands. So in all
three are 58 handshakes. Let S be a set of people such that every
pair in S shake hands. The size of S is at most

Asked In TCS Deependra Chauhan (12 years ago)

Solved Krishanu Das Read Solution (3)

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