SOLUTION: When all n teams in a league play every other team twice, a total of N games are played, where N=n^2-n. A basketball league has 11 teams and all teams play ea

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Question 42818: When all n teams in a league play every other team twice, a total of N games are played, where
N=n^2-n.
A basketball league has 11 teams and all teams play each other twice. How many games are played?

Answer by josmiceli(19441) About Me  (Show Source):