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GeekInterview.com > Placement Papers > MindTree > Aptitude
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Question: The is a meeting organized, every person shake hands with the other only once. if there are 60 shake hands, how many persons are there in the meeting?.
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| July 07, 2005 06:11:07 |
#4 |
| Chetan Arora |
Member Since: Visitor Total Comments: N/A |
RE: The is a meeting organized, every person shake hands with the other only once. if there are 60 shake
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If the no of ppl are 'n' ttoal no of hand shakes are n-1 + n-2 + n-3 + ... + 3+ 2 + 1
so the total hand shakes = [n(n+1)]/2
here n = n-1 therefore total hansshakes
[(n-1)(n-2)]/2=60
this equation doesn't get satisfied so the question is wrong !!! |
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