The swim team placed 27 swimmers at a recent invitational. Firstplace was worth

The swim team placed 27 swimmers at a recent invitational. Firstplace was worth 5 points second place was worth 3 points and thirdplace was worth 1 point. The team totaled 85 points and the numberof first place finishers was three less than the number of secondand third place finishers combined. How many swimmers finished ineither first second or third place?