The three-station work cell illustrated in the figure below has a product that must go through one of the two machines at station 1 (they are parallel) before proceeding to station 2. Capacity: 30 units/hr Station 1 Machine A Station 1 Machine B Capacity: 30 units/hr Station 2 Station 3 Capacity: Capacity: 15 units/hr 5 units/hr a) The bottleneck time of the system is minutes per unit (enter your response as a whole number). G