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In a function people greet with shakehands, if number of shakehands is 4590 .how many people are present in a function?

pallavi k , 14 Years ago
Grade
anser 1 Answers
Llyod Christmas

let n people are present

no. of handshakes= no. of ways of selecting 2 people out of n people = nC2

so find n from the equation : nC2=4590

Last Activity: 14 Years ago
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