document.write( "Question 1202370: A food factory is making a beverage for a customer from mixing two different existing products A and B. The compositions of A and B and prices ($/L) are given as follows,
\n" ); document.write( "Amount (L) in /100 L of A and B\r
\n" ); document.write( "\n" ); document.write( " Lime Orange Mango Cost ($/L)
\n" ); document.write( "A 2 6 4 4
\n" ); document.write( "B 7 4 8 12\r
\n" ); document.write( "\n" ); document.write( "The customer requires that there must be at least 5 Litres (L) Orange and at least 5 Litres of Mango concentrate per 100 Litres of the beverage respectively, but no more than 6 Litres of Lime concentrate per 100 Litres of beverage. The customer needs at least 140 Litres of the beverage per week.\r
\n" ); document.write( "\n" ); document.write( "a) Formulate a Linear Programming (LP) model for the factory that minimises the total cost of producing the beverage while satisfying all constraints.
\n" ); document.write( "b) Use the graphical method to find the optimal solution. Show the feasible region and the optimal solution on the graph. Annotate all lines on your graph.
\n" ); document.write( "c) What is the range for the cost ($) of A that can be changed without affecting the optimum solution obtained above?
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Algebra.Com's Answer #837165 by Theo(13342)\"\" \"About 
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i get 140 liters of beverage A with a cost of 560.
\n" ); document.write( "here's the graph.
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\n" ); document.write( "the cost of A was 4 dollars per liter.
\n" ); document.write( "the coswt of B was 12 dollars per liter.
\n" ); document.write( "the corner points of the feasible region are:
\n" ); document.write( "(76,64) = corner point 1
\n" ); document.write( "(140,0) = corner point 2
\n" ); document.write( "(300,0) = corner point 3
\n" ); document.write( "cost for corner point 1 was 76 * 4 + 64 * 12 = 1072
\n" ); document.write( "cost for corner point 2 was 140 * 4 = 560
\n" ); document.write( "cost for corner point 3 was 300 * 4 = 1200
\n" ); document.write( "sensitivity would be to keep raising the cosw for the x value until the minimum cost changes.
\n" ); document.write( "x is the number of liters of beverage A.
\n" ); document.write( "y is the number of liter of beverage B.
\n" ); document.write( "sensiivity analysis indidcates that the optimum solution will be change when the cost of beverage A increases to more than 12.00 per liter.
\n" ); document.write( "the following excel spreadsheet shows the sensiivity analysis.\r
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