it takes 10 hours to tile a room that is 8 feet by 10 feet. how many hours would you expect to take to tile a room that is 16 feet by 20 feet
8 * 10 = 80 square feet
16 * 20 = 320 square feet
320 / 80 = 4
4 * 10 = ______ hours
16 * 20 = 320 square feet
320 / 80 = 4
4 * 10 = ______ hours