Question
Using the following solution: LINEAR PROGRAMMING PROBLEM MAX 100X1+120X2+150X3+125X4 S.T. 1) 1X1+2X2+2X3+2X4 <108 2) 3X1+5X2+1X4 <120 3) 1X1+1X3 <25 4) 1X2+1X3+1X4>50 OPTIMAL SOLUTION Objective Function
Using the following solution:
LINEAR PROGRAMMING PROBLEM
MAX 100X1+120X2+150X3+125X4
S.T.
1) 1X1+2X2+2X3+2X4<108
2) 3X1+5X2+1X4<120
3) 1X1+1X3<25
4) 1X2+1X3+1X4>50
OPTIMAL SOLUTION
Objective Function Value = 7475.000
Variable Value Reduced Costs
-------------- --------------- ------------------
X1 8.000 0.000
X2 0.000 5.000
X3 17.000 0.000
X4 33.000 0.000
Constraint Slack/Surplus Dual Prices
-------------- --------------- ------------------
1 0.000 75.000
2 63.000 0.000
3 0.000 25.000
4 0.000 -25.000
OBJECTIVE COEFFICIENT RANGES
Variable Lower Limit Current Value Upper Limit
------------ --------------- --------------- ---------------
X1 87.500 100.000 No Upper Limit
X2 No Lower Limit 120.000 125.000
X3 125.000 150.000 162.500
X4 120.000 125.000 150.000
RIGHT HAND SIDE RANGES
Constraint Lower Limit Current Value Upper Limit
------------ --------------- --------------- ---------------
1 100.000 108.000 123.750
2 57.000 120.000 No Upper Limit
3 8.000 25.000 58.000
4 41.500 50.000 54.000
To answer the following questions.
- What is the optimal solution and optimal value? Which constraints are binding and non-binding and what are there slack or surplus values? Please type your answer below.
- What does the Objective Coefficient Ranges mean..and what are they for the first and third variables? Could the profit for X2 increase by 10% and how does the reduced cost information add to this analysis? Can the profit of X2 increase by 50% and how does the Reduced Cost help with this decision? Explain.
Please type your answer below.
- Apply the 100% Rule to the Objective Coefficient Ranges. How do these changes impact the optimal value for the problem?
Please type your answer below.
- What does Dual Price mean and what are they for each constraint? Which constraint represents the most valuable resource? For your chosen most important resource, what is the allowable % increase to the right-hand side and what would the new profit be?
Please type your answer below.
- What does the Right Hand Side Ranges mean.and what are they for the first and third constraints. In addition, is it possible to decrease the right-hand side of the second constraint by 50%? What is the effect on the optimal value if this change is made?
Please type your answer below.
F) Apply the 100% Rule to the Right hand-side ranges. How do these changes impact the optimal value for the problem?
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