After consulting with nutitionists, we decree that a satisfactory diet has at least 2000 kcal of
energy, 55 g of protein, and 800 mg of calcium (vitamins and iron are supplied by pills). While
some of us would be happy to subsist on 10 servings of pork and beans, we have decided to impose
variety by having a limit on the number of servings/day for each of our six foods. What is the least
cost satisfactory diet?