Asked by jam

five friends plan a chess tournament. how many possible games can be played if each person plays with each other person exactly once.
Answered by Steve
each of 5 people plays 4 others.
That's 5*4

But, that counts each person twice, so you really have

5*4/2 = 10 games
Answered by Isaiah
10
There are no AI answers yet. The ability to request AI answers is coming soon!