There are 10 teams in a certain league and each team plays each of the other teams exactly once. What is the total number of games played?	Select the correct option
A) 30 B) 36 C) 42 D) 45 E) 50
10C2 = 45   The answer is 45.
<result>D</result>
There are 10 teams in a certain league and each team plays each of the other teams exactly once. What is the total number of games played?