08 laps - work cost 300 yuan 09 laps - work cost 250 yuan 10 laps - work cost 300 yuan 11 laps - work cost 300 yuan 12 laps - work cost 300 yuan 13 laps - work cost 300 yuan 14 laps - work cost 300 yuan 15 laps - work cost 300 yuan 16 laps - work cost 350 yuan 17 laps - work cost 350 yuan 18 laps - work cost 350 yuan 19 laps - work cost 350 yuan 20 laps - work cost 350 yuan 22 laps - work cost 350 yuan 23 laps - work cost 380 yuan 24 laps - 380 yuan for 25 laps - 380 yuan for work