Arthur takes 7 days to lay a 10,000 square foot warehouse floor with tile. Working together from opposite ends, Arthur and John can complete the same project in 5 days. How many days would it take John to finish the same project working alone?
Arthur takes 7 days to lay a 10,000 square foot warehouse floor with tile. Working together from opposite ends, Arthur and John can complete the same project in 5 days. How many days would it take John to finish the same project working alone?