Morgan Stanley Interview Question: 66 handshakes occur at a part... | Glassdoor

Interview Question

Quantitative Analyst Interview New York, NY

66 handshakes occur at a party how many people at a party

  if everyone shakes hands with everyone else.
Answer

Interview Answer

9 Answers

2

Ans 12;
12 *11 =132
132/2 = 66

Anonymous on Feb 23, 2011
1

Solve: 'n'choose'2' =66
n=12

Anonymous on Mar 2, 2011
0

yuuurp...
http://brainteaserbible.com/interview-brainteaser-66-handshakes-at-the-party

marty holah on Jun 13, 2011
0

11

ah on Oct 10, 2013
0

another interesting way of thinking about this one is as a complete graph (where each person is a node, each undirected egde is a handshake). A complete graph has n*(n-1) edges where n is the number of nodes

JP on Sep 21, 2015
0

12

Anonymous on Nov 17, 2015
0

It has to be 11

Vipin on Apr 8, 2019
0

simple sum formula: 1+2+3+…+(n-2)+(n-1)+n = n(n+1)/2

Vipin on Apr 8, 2019
0

12

Ashish on Jul 15, 2019

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