Minimizing Shipping Costs

Short Answer

Minimizing Shipping Costs. Towns A, B, C, and D are located as shown in the figure. Two highways link town A to town D. Route 1 runs from town A to town D via town B, and Route 2 runs from town A to town D via town C. Suppose a fleet of 100 automobiles are to be shipped from an assembly plant in town A to town D. They may be shipped either by freight train along Route 1 at a cost of 20¢/mile/automobile or by truck along Route 2 at a cost of 18¢/mile/automobile.
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Which means of transportation minimizes the shipping cost?
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__________
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What are the net savings?
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$__________