Respuesta :

timlefen

Two teams can be selected out of 10 teams in C(10,2) = 10!/8! 2! = 45 ways

=> If each team plays exactly 3 matches with each other team, number of matches will be 45 x 3 = 135.

:-)

mhanifa

Answer:

  • (B) 9

Step-by-step explanation:

Number of teams = 10

Each team play each of the other 9 teams once.

Correct choice is B