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Engineering Economy 16th Edition by William Sullivan ,Elin Wicks, Koelling,
Edition 16ISBN: 978-0133439274Engineering Economy 16th Edition by William Sullivan ,Elin Wicks, Koelling,
Edition 16ISBN: 978-0133439274 Exercise 3
The Universal Postal Service is considering the possibility of fixing wind deflectors on the tops of 500 of their long-haul tractors. Three types of deflectors, with the following characteristics, are being considered (MARR =10% per year): 
If 5% in drag reduction means 2% in fuel savings per mile, how many miles do the tractors have to be driven per year before the windshear deflector is favored over the other deflectors Over what range of miles driven per year is air-vantage the best choice ( Note: Fuel cost is expected to be $3.00 per gallon, and average fuel consumption is 5 miles per gallon without the deflectors.) State any assumptions you make. (Problem)
Problem
Refer to Example 11-2. Assuming gasoline costs $3.50 per gallon, find the breakeven mileage per year between the hybrid vehicle and the gas-only vehicle. All other factors remain the same.
If 5% in drag reduction means 2% in fuel savings per mile, how many miles do the tractors have to be driven per year before the windshear deflector is favored over the other deflectors Over what range of miles driven per year is air-vantage the best choice ( Note: Fuel cost is expected to be $3.00 per gallon, and average fuel consumption is 5 miles per gallon without the deflectors.) State any assumptions you make. (Problem)
Problem
Refer to Example 11-2. Assuming gasoline costs $3.50 per gallon, find the breakeven mileage per year between the hybrid vehicle and the gas-only vehicle. All other factors remain the same.
Explanation
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The annual operating expenses of long-ha...
Engineering Economy 16th Edition by William Sullivan ,Elin Wicks, Koelling,
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