Problem : A company has factories at A, B and C which supply warehouses at D, E and F. Weekly factory capacities are 200, 160 and 90 units respectively. Weekly warehouse requirements (demands) are 180, 120 and 150 units respectively. Unit shipping costs are as follows: D E F Capacities From B DEMAND 200 160 90 450 [180 120 150 Formulate an initial feasible solution to for this company to minimize shipping costs using the Northwest Corner Rule