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In blending problems, two or more raw materials are to be blended into one or more finished goods, satisfying one or more quality requirements on the finished goods. In this example, the Chess Snackfoods Co. markets four brands of mixed nuts. Each brand contains a spedified ration of peanuts and cashews. Chess has contracts with suppliers to receive 750 pounds of peanuts/day and 250 pounds of cashews/day. The problem is to determine the number of pounds of each brand to produce each day to maximize total revenue without exceeding the available supply of nuts.