Help with d) please.

The Pullman Mfg., Inc., three-station work cell illustrated in the figure below has two machines at station 1 in parallel. (The product needs to go through only one of the two machines before proceeding to station 2.) 12 min/unit Station 1 Machine A Station 2 Station 3 4 min/unit 12 min/unit Station 1 Machine B 12 min/unit The manager, Ms. Hartley, has asked you to evaluate the system if she adds a parallel machine at station 3. a) The throughput time of the new work cell is 28 minutes. (Enter your response as a whole number.) b) The bottleneck time of the new work cell is 6 minutes per unit. (Enter your response as a whole number.) c) If the firm operates 12 hours per day, 6 days per week, the weekly capacity of the work cell with the second machine at workstation 3 is 720 units. (Enter your response as a whole number.) d) If the firm operates 12 hours per day, 6 days per week, the weekly capacity of the work cell without the second machine at workstation 3 is 360 units. The second machine at workstation 3 moves the bottleneck to workstation 3], with a process time of 6 minutes per unit, which increases the capacity by units per week. (Enter your responses as whole numbers.)