There are `n` married couples at a party. Each person shakes hand with every person other than her or his spouse. Find the total m of hand shakes.

There are n married couples at a party. Each person shakes hand with every person other than her or his spouse. Find the total no. of hand shakes.

There are n married couples at a party. Each person shakes hand with every person other than her or his spouse. Find the total no. of hand shakes.

There are "n" married couples at a path each person shakes hand with every person other than her or his spouse then number of handshakes is f(n), (sum_(n=4)^(oo) 1/(f(n)))^(-1) =?

In a party, there are 10 married couples. Each person shakes hands with every person other than her or his spouse. The total number of handshakes exchanged in that party is ___

Everybody in a room shakes hand with everybody else. Find the number of persons if the total number of hand-shakes is 66.

There an n persons sitting around a circular table. Each person shakes hands with everybody except the person sitting on both sides of him. The total number of hand shakes are 90. Then find n.

In a conference of 8 persons, if each person shakes hand with the other one only, then the total number of shake hands shall be

Thirty members attended a party. If each person shakes hands with every other person exactly once. Then find the number of handshakes made in the party.

In a party there are 20 persons. If every person shook hand with every other person in the party exactly once, find the total number of handshakes exchanged in the party.