SOLUTION: There were 12 friends each greeted each other by shaking hands.How many hand shakes took place
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Question 1045032: There were 12 friends each greeted each other by shaking hands.How many hand shakes took place
Found 2 solutions by KMST, ikleyn:
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
Each friend shook 11 hands, so they would report shakings,
but since each shake was reported twice,
there were shakes.
Answer by ikleyn(52864) (Show Source): You can put this solution on YOUR website!
.
= 66 shakes.
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