Ok, this should be an easy one for anybody who is not me … or obviously anybody else in my class. Since nobody got it, the Prof gave us the weekend to work on it.
No fret answering: It was in-class work but he said there will be at least one similar question on an upcoming quiz. I just need to know how the heck to do it.
…You are at a party. One hundred people are present (99 plus you). If everyone shakes hands exactly once with everyone else, how many handshakes will occur?