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All attendees to a party shakes with each other and 21 handshakes are made. How many people are attending the party?

+1 vote
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All attendees to a party are introduced to one another. 21 handshakes are made in total. How many people are attending the party?

posted Sep 16, 2014 by Bheemappa G

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2 Answers

0 votes

7

Formula n*(n-1)/2 = 21

answer Sep 16, 2014 by Chahat Sharma
0 votes

Answer : 7

Formula n*(n-1)/2 = 21

answer Feb 26, 2016 by Sarath Chandran



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