Question

There are 7 teams playing in the tournament. Each team is scheduled to play every other team once. How many games will be played during the tournament? A. 15 B. 21 C. 28 D. 36

Answer 1

I got d

final answer: d

I got d because you would do 7 times every other team then you would have the two teams that won go against each other

Answer 2

B. 21

Explanation:

There is an easy trick to figure this out, you have to add every number below the number of teams given in sequence.

For example: there are 7 teams so you would add 6+5+4+3+2+1 which would get you 21