Question

Here's a portion of the sensitivity analysis for the constraints. Answer the following questions. Cell Name...

  1. Here's a portion of the sensitivity analysis for the constraints. Answer the following questions.

Cell

Name

Final

Value

Shadow

Price

Constraint

R.H. Side

Allowable

Increase

Allowable

Decrease

$E$10

Bar/Food

0

1560

0

5

16

$E$11

Budget

150000

3.4

150000

1E+30

96200

$E$6

Excursions

24.24

0

5

19.24

1E+30

$E$7

Restaurant

12

-1660

12

16

    1. What happens to the optimal solution if you can get more budget? How much more of the budget can you get? [10 Marks]
    2. What happens to the optimal solution if the excursions resource is increased to 25? [5 Marks]
    3. Interpret the -1660 shadow price for restaurant resource. [5 Marks]

    Homework Answers

    Answer #1

    a.The optimal solution does not change when the RHS of the budget constraint increases.The shadow price of budget constraint=3.4

    A shadow price indicates by how much the optimal increases or decreases when the RHS of the constraint increases by 1 unit.Hence,when the budget is increased,the optimal solution increases by ,

    Increase in optimal solution=Shadow price*Number of units =3.4*Number of units

    Allowable increase for the budget constraint=Infinity.

    Hence,the budget can be increased to infinity.

    b.The optimal solution changes because the allowable increase for the excursions constraint =5+19.24=24.24

    So,the solution does not remain optimal when the RHS is increased to 25.

    c. The shadow price for restuarant constraint is -1660 which indicates that the optimal solution value decreases by 1660 for every 1 unit increase of the RHS of the restaurant constraint.

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