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Real - Juice, a manufacturer of diet drinks, is planning to introduce a special drink that will magically burn away fat. The drink is a

Real-Juice, a manufacturer of diet drinks, is planning to introduce a special drink that will magically burn away fat. The drink is a bit expensive, but Real-Juice guarantees that a person using this diet plan will lose up to 50 pounds in just 3 weeks. The drink is made up of four mystery ingredients (ingredients A, B, C, and D). The plan calls for a person to consume at least three 12-ounce doses per day (ie. At least 36 ounces per day).
Each of the four ingredients contains different levels of three chemical compounds (chemicals X, Y, and Z). Health regulations mandate that the dosage consumed per day should contain minimum prescribed levels of chemicals X and Y and should not exceed maximum prescribed levels for the third chemical, Z.
The composition of the four ingredients in terms of the chemical compounds (units per ounce) is shown in table 2, along with the unit cost prices of the ingredients. Real-Juice wants to find the optimal way to mix the ingredients to create the drink, at minimum cost per daily dose.
Ingredient A Ingredient B Ingredient C Ingredient D Requirements
Chemical X 34810 At least 280 units
Chemical Y 5366 At least 200 units
Chemical Z 10252040 At most 1,050 units
COST PER OUNCE $0.40 $0.20 $0.60 $0.30
REQUIRED:
a. Formulate a linear programming model for this problem.
b. Solve this model by using the computer.
c. State the optimal solution to the problem.
d. What constraints are non-binding?
e. Interpret the non-zero shadow prices in your output constraint table.
f. Real-Juice can decrease the minimum requirements for chemical X by 5 units, provided that the maximum limit allowed for chemical Z is reduced to 1000 units. Is this trade-off cost effective for Real-Juice to implement?

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