United Express Service (UES) uses large quantities of packaging materials at its four distribution hubs. After screening potential suppliers, UES identified six vendors that can provide packaging materials that will satisfy its quality standards. UES asked each of the six vendors to submit bids to satisfy annual demand at each of its four distribution hubs over the next year. The following table lists the bids received (in thousands of dollars). UES wants to ensure that each of the distribution hubs is serviced by a different vendor. Which bids should UES accept, and which vendors should UES select to supply each distribution hub?

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Problem 10-21 (Algorithmic) United Express Service (UES) uses large quantities of packaging materials at its four distribution hubs. After screening potential suppliers, UES identified six vendors that can provide packaging materials that will satisfy its quality standards. UES asked each of the six vendors to submit bids to satisfy annual demand at each of its four distribution hubs over the next year. The following table lists the bids received (in thousands of dollars). UES wants to ensure that each of the distribution hubs is serviced by a different vendor. Which bids should UES accept, and which vendors should UES select to supply each distribution hub? Distribution Hub Bidder 1 2 3 4 Martin Products 190 240 120 165 Schmidt Materials 140 200 150 240 Miller Containers 215 235 145 210 D&J Burns 175 290 190 185 Larbes 200 230 155 185 Furnishings Lawler Depot 230 200 140 190 Bidder Decision Bid Martin Products Select 190 X Schmidt Materials Select 140 Miller Containers Reject not applicable as bidder is not selected D&J Burns Select 185 Larbes Furnishings Reject not applicable as bidder is not selected Lawler Depot Select 200 The value of the objective function is 655 X thousands of dollars