Spreadsheet Modeling & Decision Analysis: A Practical Introduction To Business Analytics, Loose-leaf Version
8th Edition
ISBN: 9781337274852
Author: Ragsdale, Cliff
Publisher: South-Western College Pub
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Question
Chapter 2, Problem 1QP
Summary Introduction
To explain: If an LP model can have exactly two optimal solutions.
Expert Solution & Answer
Explanation of Solution
It is not possible for an LP model to have exactly two optimal solutions. A normal LP model can have either a single optimal solution or more than 1 optimal solution. But it is not possible to have exactly two solutions.
LP model will have 1 optimal solution when the final level curve intersecting the region at a single point in the feasible region. But, when the final level curve intersects with edges of a feasible region, there will be more than 1 point in the feasible region. Therefore, it will have more than 1 optimal solution.
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What is a optimal solution?
Find the dual of the problem.
A manufacturer has the capability to produce both chairs and tables. Both products use the same materials (wood, nails and paint) and both have a setup cost ($100 for chairs, $200 for tables). The firm earns a profit of $20 per chair and $65 per table and can sell as many of each as it can produce. The daily supply of wood, nails and paint is limited. To manage the decision-making process, an analyst has formulated the following linear programming model:Max 20x1 + 65x2 – 100y1 – 200y2s.t. 5x1 + 10x2 ≤ 100 {Constraint 1}20x1 + 50x2 ≤ 250 {Constraint 2}1x1 + 1.5x2 ≤ 10 {Constraint 3}My1 ≥ x1 {Constraint 4}My2 ≥ x2 {Constraint 5}yi={1, if product j is produced0, otherwiseyi=1, if product j is produced0, otherwiseWhich of the constraints limit the amount of raw materials that can be consumed?
A. Constraint 1
B. Constraint 4
C. Constraint 5
D. Constraint 1 and 4
E. Constraint 1, 2 and 3
Chapter 2 Solutions
Spreadsheet Modeling & Decision Analysis: A Practical Introduction To Business Analytics, Loose-leaf Version
Ch. 2 - Prob. 1QPCh. 2 - Prob. 2QPCh. 2 - Prob. 3QPCh. 2 - Prob. 4QPCh. 2 - Prob. 5QPCh. 2 - Prob. 6QPCh. 2 - Prob. 7QPCh. 2 - Prob. 8QPCh. 2 - Prob. 9QPCh. 2 - Prob. 10QP
Ch. 2 - Prob. 11QPCh. 2 - Prob. 12QPCh. 2 - Prob. 13QPCh. 2 - Prob. 14QPCh. 2 - Prob. 15QPCh. 2 - Prob. 16QPCh. 2 - Prob. 17QPCh. 2 - Prob. 18QPCh. 2 - American Auto is evaluating their marketing plan...Ch. 2 - Prob. 20QPCh. 2 - Prob. 21QPCh. 2 - Prob. 22QPCh. 2 - Prob. 23QPCh. 2 - Prob. 24QPCh. 2 - Prob. 25QPCh. 2 - Prob. 26QPCh. 2 - Prob. 1.1CCh. 2 - Prob. 1.2CCh. 2 - Prob. 1.3CCh. 2 - Prob. 1.4CCh. 2 - Prob. 1.5CCh. 2 - Prob. 1.6CCh. 2 - Prob. 1.7CCh. 2 - Prob. 1.8CCh. 2 - Prob. 1.9CCh. 2 - Prob. 1.10C
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