1. Figure 1 shows product structure for an assembly line. The value in percentages are the scrap rate for each process and and values in sec/unit are the processing time. The demand for the product is 47880(L3D+1) units per month. The company operates 8 hours per day and 25 days per month. (a) (b) (c) (d) (e) SS1 20% 23 sec/unit A 10% 10 sec/unit Calculate the input required for sub-assembly SS1. Calculate the input required for sub-assembly SS2. Calculate the input required for sub-assembly SS4. Calculate the number of machine required at workstation C. (Integer answer) Calculate the number of machine required at workstation D. (Integer answer) SS2 10% 15 sec/unit 20% 8 sec/unit SS3 10% 20 sec/unit C 30% 4 sec/unit Figure 1 SS4 20% 25 sec/unit D 5% 30 sec/unit Output