The Following Linear Programming Problem Has Been Solved by the Management

question 2

Essay

The following linear programming problem has been solved by The Management Scientist.Use the output to answer the questions.
LINEAR PROGRAMMING PROBLEM
MAX 25X1+30X2+15X3
S.T.
1)4X1+5X2+8X3<1200
2)9X1+15X2+3X3<1500
OPTIMAL SOLUTION
Objective Function Value = 4700.000 $$\begin{array} { c c c } \text { Variable } & \text { Value } & \text { Reduced Cost } \\\text { X1 } & 140.000 & 0.000 \\\text { X2 } & 0.000 & 10.000 \\\text { X3 } & 80.000 & 0.000\end{array}$$ $$\begin{array} { c c c } \text { Constraint } & \text { Slack/Surplus } & \text { Dual Price } \\1 & 0.000 & 1.000 \\2 & 0.000 & 2.333\end{array}$$ OBJECTIVE COEFFICIENT RANGES $$\begin{array} { c c c c } \text { Variable } & \text { Lower Limit } & \text { Current Value } & \text { Upper Limit } \\\text { X1 } & 19.286 & 25.000 & 45.000 \\\text { X2 } & \text { No Lower Limit } & 30.000 & 40.000 \\\text { X3 } & 8.333 & 15.000 & 50.000\end{array}$$ RIGHT HAND SIDE RANGES $$\begin{array} { c c c c } \text { Constraint } & \text { Lower Limit } & \text { Current Value } & \text { Upper Limit } \\1 & 666.667 & 1200.000 & 4000.000 \\2 & 450.000 & 1500.000 & 2700.000\end{array}$$
a.Give the complete optimal solution.
b.Which constraints are binding?
c.What is the dual price for the second constraint? What interpretation does this have?
d.Over what range can the objective function coefficient of x₂ vary before a new solution point becomes optimal?
e.By how much can the amount of resource 2 decrease before the dual price will change?f. What would happen if the first constraint's right-hand side increased by 700 and the second's decreased by 350?

---

Definitions:

Retrieval Cue

Stimuli or signals that can trigger the memory of a previous experience, making it easier to recall information.

Encoding Specificity Principle

The theory that memory is improved when information available at encoding is also present at retrieval.

Sensory Store

A very short-term form of memory that allows individuals to retain impressions of sensory information after the original stimuli have ended.

Retrieval Cue

A trigger or stimulus that aids the recall of information from memory.