Every two persons shakes hands with each other in a party and the total number of handis 66. The number of guests in the party is

Every person in a room , shake hands with every other person . The total number of handshakes it 45. The number of person in the room is .

Everybody in a room shakes hands with everybody else. The total number of shake hands is 66. The number of persons in the room is

Everybody in a room shakes hands with everybody else. The total number of shake hands is 66. The number of persons in the room is ……….. .

Everybody in a room shakes hands with everybody else. The total number of shake hands is 66. The number of persons in the room is …………….. .

Every body in a room shakes hands with every body else. The total number of hand shakes is 66. The total number of persons in the room is

In a room each person present shakes hand with the other . If the total number handshakes is 66 the number of persons present inn the room is