In a round-robin tennis tournament, every player meets every other player exactly once. How many players can participate in a tournament of 66 matches?
A)24
B)66
C)10
D)12
E)11

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The Answer of In a round-robin tennis tournament, every player meets every other player exactly once. How many players can participate in a tournament of 66 matches?
A)24
B)66
C)10
D)12
E)11

In a Round-Robin Tennis Tournament, Every Player Meets Every Other