Tom is leading a workshop for 15 people. He wants each person to meet every other person (shake hands once). How many handshakes occur?
A) 213
B) 105
C) 98
D) 210
E) 108

Question

Tom is leading a workshop for 15 people. He wants each person to meet every other person (shake hands once). How many handshakes occur? ​
A) 213
B) 105
C) 98
D) 210
E) 108

Quizplus · Accepted Answer

The total number of handshakes can be calculated using the formula for combinations: n(n-1)/2, where n is the number of people. For 15 people, it's 15(15-1)/2 = 105.

Tom Is Leading a Workshop for 15 People