An oil company wants to create lube oil, gasoline and diesel fuel at two refineries. There are two sources of crude oil. Consider arc 2-4. The per unit shipping cost of crude B from source 2 (node 2) to refinery 2 (node 4) is $11 and the yield is 85 percent. The following network representation depicts this problem. What is the balance of flow constraint for node 3 (Refinery 1)? $An oil company wants to create lube oil, gasoline and diesel fuel at two refineries. There are two sources of crude oil. Consider arc 2-4. The per unit shipping cost of crude B from source 2 (node 2) to refinery 2 (node 4) is $11 and the yield is 85 percent. The following network representation depicts this problem. What is the balance of flow constraint for node 3 (Refinery 1)? A)X13 + X23 - .95 X35 - .90 X36 -.90 X37 = 0 B).80 X13 + .95 X23 - X35 - X36 -X37 = 0 C).80 X13 + .95 X23 - .90 X36 - .90 X37 \ge 0 D)X13 + X23 - X35 - X36 - X37 \ge 0$
A)X₁₃ + X₂₃ - .95 X₃₅ - .90 X₃₆ -.90 X₃₇ = 0
B).80 X₁₃ + .95 X₂₃ - X₃₅ - X₃₆ -X₃₇ = 0
C).80 X₁₃ + .95 X₂₃ - .90 X₃₆ - .90 X₃₇

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0
D)X₁₃ + X₂₃ - X₃₅ - X₃₆ - X₃₇

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A Company Wants to Determine the Optimal Replacement Policy for Its

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