For the blend example in this chapter, if the requirement

For the blend example in this chapter, if the requirement that “at least 3,000 barrels of each grade of motor oil” was changed to exactly 3,000 barrels of each grade, how would this affect the optimal solution?
If the company could acquire more of one of the three components, which should it be? What would be the effect on the total profit of acquiring more of this component?