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Solve the Problem nn Teams in Which Each Team Plays Every Other Team Twice

Question 51

Multiple Choice

Solve the problem.
-In a sports league of nn teams in which each team plays every other team twice, the total number NN of games to be played is given by N=n2−n\mathrm{N}=\mathrm{n}^{2}-\mathrm{n} . How many teams are in a softball league if the total number of games played is 90 ?


A) 10
B) 9
C) 8
D) 11

Correct Answer:

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