Question

In: Statistics and Probability

I need a screenshot of the proper excel model to solve this: A Supply Company maintains...

I need a screenshot of the proper excel model to solve this:

A Supply Company maintains 3 plants (production facilities P1, P2, & P3) which supply three fuel distributors (A, B, & C) in the city.

Daily plant capacities:

P1 = 4500 gallons; P2 = 3000 gallons; P3 = 5000 gallons

Daily distributor requirements:

A = 5500; B = 2500; C = 4200

Per-gallon transportation costs (in dollars) for each plant-distributor combination are:

              A            B            C

P1          0.80       0.50       1.00

P2          0.70       0.65       0.80

P3          0.50       0.45       0.70

Because of a failure of expected supply earlier, the distributors have decided to charge a penalty per gallon if there are shortages in the future. Each distributor charges a different rate as follows:

A = $0.45; B = $0.55, C = $0.50

Your objective is to build a linear model that will determine the optimum supply of fuel to the distributors in order to minimize the total transportation cost as well as the charges payable as penalty

Let:

X1A = number of gallons of gasoline supplied from Plant 1 to Distributor A

X1B = number of gallons of gasoline supplied from Plant 1 to Distributor B

X1C = number of gallons of gasoline supplied from Plant 1 to Distributor C

X2A = number of gallons of gasoline supplied from Plant 2 to Distributor A

X2B = number of gallons of gasoline supplied from Plant 2 to Distributor B

X2C = number of gallons of gasoline supplied from Plant 2 to Distributor C

X3A = number of gallons of gasoline supplied from Plant 3 to Distributor A

X3B = number of gallons of gasoline supplied from Plant 3 to Distributor B

X3C = number of gallons of gasoline supplied from Plant 3 to Distributor C

MIN 0.80X1A +0.50X1B +1.00X1C +0.70X2A +0.65X2B +0.80X2C +0.50X3A +0.45X3B +0.70X3C

s.t.

              X1A + X1B + X1C <= 4500

              X2A + X2B + X2C <= 3000

              X3A + X3B + X3C <= 5000

              X1A + X2A + X3A = 5500

              X1B + X2B + X3B = 2500

              X1C + X2C + X3C = 4200

              X1A, X1B, X1C, X2A, X2B, X2C, X3A, X3B, X3C >= 0

Solutions

Expert Solution

Formulas

A B C
P1 0.8 0.5 1
P2 0.7 0.65 0.8
P3 0.5 0.45 0.7
A B C
P1 1700 2500 0 =SUM(B8:D8) 4500
P2 0 0 3000 =SUM(B9:D9) 3000
P3 3800 0 1200 =SUM(B10:D10) 5000
=SUM(B8:B10) =SUM(C8:C10) =SUM(D8:D10)
5500 2500 4200
Cost =SUMPRODUCT(B2:D4,B8:D10)

data -> solver

Solution

A B C
P1 0.8 0.5 1
P2 0.7 0.65 0.8
P3 0.5 0.45 0.7
A B C
P1 1700 2500 0 4200 4500
P2 0 0 3000 3000 3000
P3 3800 0 1200 5000 5000
5500 2500 4200
5500 2500 4200
Cost 7750

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