amanufacturer is costing out one product line which consists of three different model A,B and C. These models are assembeld from three typs of parts 1,2 and 3. the manufacturer would like to produce such quantities of the three models as to completly deplet the inventory of parts of hand , in the final production run. Each model Auses one unit of part 1 , three units of part 2 and two parts of3. each unit of model B uses one unit part 1, two units of part 2 and one unit of part 3. Each model C uses two units of part 1, and three units of part 3. inventory records show that there are on hand 1,500 units of part 1 and 1,900 units each of part part 2 and 3 . how many of each model should the manufacturer plan to produce?