Suppose the assembly line at a Toyota plant moves at the rate of one vehicle per minute. Once the assembly process begins, it takes 2.5 hours for a vehicle to reach final assembly, where seats are installed. While in final assembly, vehicles with defective seats are driven to the “code-1" parking area, which is used exclusively for seat defects. Vehicles in code-1 wait on average one week for replacement seats to arrive and be installed. At any given time an average of 8 vehicles are waiting in code-1. Assume the plant operates non-stop, 24 hours a day, 7 days a week.
A. What is the average number of vehicles in the assembly line (excluding final assembly) at any given time?
B. On average, how many vehicles per day are sent to code-1 parking?