Question

A tournament includes 6 basketball teams. If each team plays all of the other teams twice, how many games will there be in all?
A.
15
B.
21
C.
30
D.
42

Answer 1

30

Answer 2

team A will play teams B, C, D, E, and F --> 5x2=10
team B will play teams C, D, E and F --> 4x2=8
team C will play teams D, E and F --> 3x2=6
team D will play teams E and F --> 2x2=4
team E will play team F --> 1x2=2
10+8+6+4+2 = 30

Answer 3

thanks

Answer 4

yw