## Subject II

In a chess tournament, at least 10 students participate, including 2 students from the 7th grade, with the rest being students from the 8th grade. Each participant plays exactly one game with each of the others. The two students from the 7th grade scored a total of 8 points, and the students from the 8th grade have equal scores. Knowing that one point is awarded for a win, 0.5 points for a draw, and 0 points for a loss, how many participants are in the 8th grade?