Current location - Training Enrollment Network - Mathematics courses - Urgent! There are seven of us participating in the chess game, and the points are accumulated circularly, that is, everyone has to participate in six games, so how many games are there?
Urgent! There are seven of us participating in the chess game, and the points are accumulated circularly, that is, everyone has to participate in six games, so how many games are there?
It should only be 2 1 field ~ ~

Formula for calculating the number of sessions in a single cycle:

(number of teams-1)X number of teams.

-

2

(7- 1)X 7

- =2 1

2

Simply put, there are only six games for four teams to participate in a single round robin:

(4- 1)X 4

-= 6 games.

2

In addition, the number of rounds in a single round robin is odd and cannot be even. Five people (teams) have five rounds, and six teams have five rounds, except that five teams have a bye each round and six teams (even numbers) have a bye each round. You said that the seven-person single cycle is also seven rounds, but because seven is singular, one person has a bye in each round. The number of rounds is singular 3, 5, 7, 9. ..........