Problema Solution
there are 4 teams in a basketball league. each team plays each of the other teams three times. how many games are played?
Answer provided by our tutors
Lets denote the teams with 'A', 'B', 'C' and 'D'.
Lets denote with A-B when A and B play a game.
Then we can denote all the possible games with:
A-B
A-C
A-D
B-C
B-D
C-D
We have 6 different games and each of this game is played 3 times.
Therefore the number of all games played will be 6*3=18.