Problem 3 (MRP): requires one bed and one chassis subassembly. A chassis subassembly requires one frame, two axles and four wheels. 90 beds are scheduled to arrive in week 4. Five chassis subassemblies, 100 frames, 100 axles, and 200 wheels are available in inventory. The purchase lead time for frames, axles, wheels, and beds is one week. Any quantity of chassis between 50 to 100 will require one week to assemble, and 80 trailers will require 2 weeks to assemble. Draw the product structure tree and prepare the material requirements plan for axles (only). [10 Marks] Week Beg. 2 3 4 5 6 Production Schedule Inv. 10 Quantity 80 Beg. 1 2 3 4 5 6 Inv. 80 Trailers LT = 2 wks. Gross requirements Scheduled receipts Projected on hand Net requirements Planned-order Planned-order Beg. Inv. 1 1 2 3 4 5 6 LT = 1 wk. Gross requirements Scheduled receipts Projected on hand Net requirements Planned-order Planned-order Beg. Inv. 1 2 3 5 Axle (2) LT = 1 wk. Gross requirements Scheduled receipts Net requirements Planned-order Planned-order