Question & Answer: An automated car wash serves customers with the following serial process: pre-treat…..

An automated car wash serves customers with the following serial process: pre-treat, wash, rinse, wax, hand dry. Each of these steps is performed by a dedicated machine except for the hand dry step, which is performed manually on each car by one of 1 workers. The steps of the process have the following processing times: Pre-treat: 5 minute per car Wash: 6 minutes per car Rinse: 5 minutes per car Wax: 3 minutes per car Hand dry: 8 minutes per car a. If the car wash has a demand of 13 cars per hour, what is the customers per flow rate of the process? hour