in a dark room there are 4 people who are don't know each other. If each person is gonna shake hands of other people exactly one time how many hand shakes will occur ?

Question

knov · Answer

|dw:1458834307440:dw|

knov · Answer

is it right ?

anonymous · Answer

Okay, using the power of combination there will be a total of 6 handshakes goin' on (I'm pretty darn sure about that). There are four people, each one shakes hands with another person. Each person can shake hands with three other people. How did you get 24... XD jk. That's how I got the answer.

knov · Answer

oh i see, im kinda new to combinatorics and have been studying lately. sometimes i get confused.Thanks

anonymous · Answer

|dw:1458834495037:dw| It's kinda messy, but this is how I did it.