please help me answer a,b,c,d

The three-station work cell at Pullman Mfg., Inc. is illustrated in the figure below. It has two machines at station 1 in parallel (i.e., the product needs to go through only one of the two machines before proceeding to station 2). 20 min/unit Station 1 Machine A Station 2 15 min/unit Station 3 3 min/unit Station 1 Machine B 20 min/unit a) The throughput time is 5 minutes (enter your response as a whole number). b) The bottleneck time of this work cell is 2 minutes per unit (enter your response as a whole number). c) Station is the bottleneck station. d) If the firm operates 9 hours per day, 6 days per week, the weekly capacity of this work cell is units (enter your response as a whole number)