Question

There are 10 teams in a basketball competition. Each team must play each of the other teams once. How many games will each team play? (A) 14 (B) 9 (C) 70 (D) 63​

Answer 1

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.

:-)

Answer 2

• (B) 9

Explanation:

Number of teams = 10

Each team play each of the other 9 teams once.

Correct choice is B