
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Transcribed Image Text:Problem 1 Suppose we have created a simplex tableau for a linear program (assuming it is a
maximization problem) that looks like the following:
Row
0
1
2
3
4
2 x1
1 -20
X2 X3
0 0
0 1 0
00
0 -1 0 0
X4 X5 x6 rhs
1 0
80 0 0
0 1 0 0
1
0
1
0 1
240
0 3
1 0 1 0 0 3
1
1
0 2
(a) Based on the current tableau, write down the corresponding basic feasible solution.
(b) The current tableau is clearly not optimal. To proceed to the next step, which variable will
be chosen as the entering variable and which variable will be chosen as the leaving variable?
(c) Write down the tableau that results from performing one simplex pivot/iteration based
on your choice in part (b). Show your step-by-step work.
(d) Is the solution indicated by your simplex tableau optimal after you finish part (c)? If so, write
down the optimal solution and the optimal objective value. If not, identify the next entering
variable and leaving variable.
Expert Solution

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Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step 1: Introduction of the linear programming model
VIEW Step 2: Determine the basic feasible solution
VIEW Step 3: Determine the entering variable and leaving variable
VIEW Step 4: write down the tableau that is produced by one simplex pivot.
VIEW Step 5: write down the tableau that is produced by one simplex pivot.
VIEW Solution
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