Luke and John have been hired by a farmer to sow flower seeds. Mark couldn't join because he had to help the Knight fix his window. They've been assigned a 10-acre plot of land and split it in half so they can work independently. Luke starts from the east and John from the west. Luke can plow the land at a rate of 20 minutes per acre. John takes 40 minutes to plow, but sows seeds at three times the speed Sammy does. If planting seeds on the 10-acre plot pays 100 silver coins (One gold coin), how much of that money should go to Luke?