Solution
The Number of Shake hands =C(n,2)
n= total number of men
C(9,2)=9!/2!(9-2)!
=9!/2!(7!)
=9×8/2
=36
Then total number of Shake hands=36
The correct option is B
above is the solution of “The Number of Shake hand” Question
Note:
The formula for finding the total number of shake hands
C(n,2),where n is total number of persons
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