1. Material Requirement planning [20 points]: points; 1 hour) The bill of materials (BOM) of parts/components for a company is given below. There is only one storage space for each type of components and BI is indicated in parentheses in the first column. Basically Ax and A, are the same components used for parts A and B with BI = 200. Determine the plan orders release (POR or PREL) for Part B. Parts (BI) X (70) Y (70) Ax (200) Ay (200) - - Periodic BOM: Planned Order Release (POR) 1 2 3 4 5 6 7 8 9 10 11 12 - 80 200 125 50 200 100 80 200 125 50 200 100 - - 40 600 375 150 600 300 - - 160 400 250 100 400 200 - - - B (200) - - Part B = 3Ax+2A,+Y Type: F Lot size: 500 Time Period, t 1 2 4 5 6 7 Gross requirements (GR) Beg. Inventory (BI) Net regt. (NR) Planned Order Rel. (POR) Leadtime, L: 1 8 Present period: 6 9 10 11 12