7 people meet and shake hands with one another, how many
handshakes occur?
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Answer Posted / anuj
E(n-1) ie sum of n-1
for n=2 E1=1
n=3 E2=2+1=3
n=4 3+2+1=6
so for n=7 no of hand shakes will be E6=6+5+4+3+2+1=21
| Is This Answer Correct ? | 21 Yes | 2 No |
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