Solve the problem.
-In a sports league of $n$ teams in which each team plays every other team twice, the total number $N$ of games to be played is given by $\mathrm{N}=\mathrm{n}^{2}-\mathrm{n}$. What is the total number of games to be played in a football league having 8 teams?
A) 64
B) 56
C) 16
D) 72

Question

Quizplus · Accepted Answer

Using the formula $N = n^2 - n$ with $n = 8$, we get $N = 8^2 - 8 = 64 - 8 = 56$.

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

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