A father and son own a flooring company. When working togeth…

A father and son own a flooring company. When working together they can refinish a floor in 5 hours. However, when the son is working by himself, it takes him 24 hours longer than his father to complete a job. How long would it take the father to finish refinishing the flooring on his own without his son’s help? How long does the son take working on his own?  The father takes  hours working by himself, while his son takes hours working alone.