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There are 9 basketball teams in a school district. If each team plays each other exactly one, how many games are played?
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There are 9 basketball teams in a school district. If each team plays each other exactly one, how many games are played?

User IJay
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8+7+6+5+4+3+2+1=36 games.I counted down. 1st team plays against the other 8 teams, then the next plays against every team besides the 1st team, the third goes against the 6 other teams that it hasn't faced and so on.
User Dingalla
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