Ten teams participate in a tournament. Every team plays each of the other teams twice. The total number of matches to be played is

Ten teams participate in a tournament. Every team plays each of the ot

1.	Ten teams participate in a tournament. Every team plays each of the other teams twice. The total number of matches to be played is
A.	20
B.	45
C.	60
D.	90
Answer» E.

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Ten teams participate in a tournament. Every team plays each of the other teams twice. The total number of matches to be played is

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