Vytec Corporation is a subsidiary of Owens Corning, and manufactures extruded vinyl residential siding. In order to maximize the quantity and quality of the product, the operations analyst had to decide how best to use the available silos and extruder. He must determine the best way to configure the extruders to their respective material silos in order to ensure that each silo faced a similar demand for material. An Excel spreadsheet containing data and solver solutions is available (product 5B03E10).