In the chess game, there are 10 students from junior high school, senior high school and literature and art department. Each of them competes with the other 9 students in one game. The winner of each game gets 1 point, and the draw gets 0. The loser doesn't score. Finally, the average score of Junior high school is 4. The average score of senior high school is 3.6, and the average score of literature and art department is 9?

In the chess game, there are 10 students from junior high school, senior high school and literature and art department. Each of them competes with the other 9 students in one game. The winner of each game gets 1 point, and the draw gets 0. The loser doesn't score. Finally, the average score of Junior high school is 4. The average score of senior high school is 3.6, and the average score of literature and art department is 9?

The winner of each game gets 1 point, the draw gets 0.5 points, and the loser doesn't get any points, which means that the sum of the scores of the two players in each game is 1, and each player's score is an integral multiple of 0.5. The average score of senior high school is 3.6, and the total score is an integral multiple of 0.5. Therefore, the number of senior high school players is 5, and the total score is 18. Each player competes with the other 9 players in one game, so the total score of these players