Question

Jones can paint a car in 8 hours. Smith can paint the same car in 6 hours. They start to paint the car together. After 2 hours, Jones leaves for lunch and Smith finishes painting the car alone. How long does it take Smith to finish?

Answer 1

4 Hours because he has already done two hours worth of work and he only needs six hours to complete it. The rest of the information is just a distraction