Resumen
In this paper, we restructure and simplify Jolayemi and Olorunniwo's model (J-O model) to make it more adaptable and applicable in industries. The new model obtained from the restructuring process has only seven contraints while the J-O model has 11. In each of the examples, the number of itreations before reaching optimality was smaller for the new model than for the J-O model. The examples show that as both models increase in size, the J-O model becomes more and more difficult to solve than the new model. In most of the examples, the optimal solutions produced by the Excel 2007 solver are very close to those produced by LINDO.