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Hawkins Manufacturing Company produces connecting rods for 4- and 6-cylindcr automobile engines using the same production line. The cost required to set up the production line to produce the 4-cylinder connecting rods is $2,000, and the cost required to set up the production line for the 6-cylinder connecting rods is $3,500. Manufacturing costs are $15 for each 4-cylinder connecting rod and $18 for each 6-cylinder connecting rod. There is no production on weekends, so on Friday the line is disassembled and cleaned. On Monday, the line must be set up to run whichever product will be produced that week. Once the line has been set up, the weekly production capacities are 6,000 6-cylinder connecting rods and 8,000 4-cylinder connecting rods. Let
x4 = the number of 4-cylinder connecting rods produced next week
x6 = the number of 6-cylinder connecting rods produced next week
s4 = 1 if the production line is set up to produce the 4-cylinder connecting rods; 0 if otherwise
s6 = 1 if the production line is set up to produce the 6-cylinder connecting rods; 0 if otherwise
- a. Using the decision variables x4 and s4, write a constraint that sets next week’s maximum production of the 4-cylinder connecting rods to either 0 or 8,000 units.
- b. Using the decision variables x6 and s6, write a constraint that sets next week’s maximum production of the 6-cylinder connecting rods to either 0 or 6,000 units.
- c. Write a constraint that requires that production be set up for exactly one of the two rods.
- d. Write the cost
function to be minimized.
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Chapter 9 Solutions
Essentials Of Business Analytics
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