5.18a

     MOR/LP
Date: 11/14/10                                   Time: 11:41:13
                    C:\PROGRA~3\MOR\5-18a.lp
                        MODEL DESCRIPTION
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"Problem 5-18a: Run paper factory to get minimum cost"

 Min Z = 1000a + 2000b

 st 
 8a+2b>=16  "This makes enough low grade paper."
 a+b>=5     "This makes enough medium grade paper."
 2a+7b>=20  "This makes enough high grade paper."

1000a + 2000b - Totalcost = 0 "Check for total cost"
a + b - Totalruntime = 0         "Calculate total time factories ran"

"Note that the total cost will be 1000a + 2000b"
"Note that the total time the plants will run = a+b"
"Note that the delivery time will be the larger of a or b"
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Simplex Method
   ^^^ Optimal Solution ^^^

Z               =   7000.0267
A               =      3.0000
B               =      2.0000
TOTALCOST       =   7000.0000
TOTALRUNTIME    =      5.0000
 Surpl1         =     12.0000