QDM Question 5 : A company is attempting to decide the mix of products which it should produce next week. It has six products, each with a unit profit (unit profit =selling price –variable cost per unit) and a unit production time as shown below:
Product |
Profit ($/unit) |
Production time (hours/unit) |
1 |
10 |
1 |
2 |
22 |
2 |
3 |
35 |
1.7 |
4 |
19 |
2.4 |
5 |
55 |
4.5 |
6 |
115 |
9.5 |
The company has 720 hours available next week. The company has the following additional linear constraints:
Formulate an integer programming model to find next week production schedule at maximize profit with linear objective function and all linear constraints.
Decision variables (1 mark):
Objective function (1 mark):
Constraints :
Additional constraint 1 : Product 1 must be produced if any of Product 2, 3 and 4 is produced.
Additional constraint 2 : Product 3 must be produced if all of Product 4, 5 and 6 are produced.
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