Question
A soccer league has 6 teams. During one season, each team plays each of the other teams 2 times. What is the total number of games played in the league during one season? (Previous course)
Step 1
This can be calculated using the formula for combinations, which is $\frac{n(n-1)}{2}$, where $n$ is the number of teams. In this case, $n=6$. Show more…
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Combinatorics: Combinations
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