If six people meet there are fifteen handshakes.
107 unique handshakes will be exchanged
4950 handshakes, that is the definite answer
8
381
29 People including You.
12
9 handshakes correct answer is 10
There will be 28 handshakes. If you ask each person how many handshakes they had they will tell you 7 making 7 x 8 = 56 handshakes in all. But every hand involves two people, so every handshake has been counted twice, thus there are 56 / 2 = 28 handshakes in all.
21 handshakes
9 handshakes if everyone shakes everyones hand once
If that happens you have to times ninexten and the answer would be 90 handshakes