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Mathematics, 24.04.2020 21:51 cxttiemsp021

When all n teams in a league play every other team twice, a total of N games are played, where Upper N equals n squared minus n. A soccer league has 6 teams and all teams play each other twice. How many games are played?

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When all n teams in a league play every other team twice, a total of N games are played, where Upper...

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