Question
In a party 19 persons shake hands with every other
person. Find the total no of handshakes in the party? Ā Ā Ā ĀSolution
As two persons are involved in one handshake, total number of handshakes in the party =Ā 19C2 Ā =Ā `(19xx18)/2` Ā =Ā 171
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