Question

If there are four teams in a league, how many games will have to be played so that each team plays every other team once?

Answer 1

6 matches

Explanation:

Let’s call the teams A B C D

A will play B C D = 3 matches

B will play only C and D as it already played A, making 2 matches

C will play D, making 1 match

D has already played all

Total number of matches is thus 3 + 2 + 1 = 6 matches