EBK BASICS OF ENGINEERING ECONOMY
EBK BASICS OF ENGINEERING ECONOMY
2nd Edition
ISBN: 8220102797123
Author: Blank
Publisher: YUZU
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Chapter 3, Problem 37P
To determine

Calculate the Present worth.

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Frontier Airlines hedged the cost of jet fuel by purchasing options that allowed the airline to purchase fuel at a fixed price for 2 years. If the savings in fuel costs were $140,000 in month 1, $141,400 in month 2, and amounts increasing by 1% per month through the 2-year option period, what was the present worth of the savings at an interest rate of 18% per year compounded monthly?
Periodic outlays for inventory-control software at Baron Chemicals are estimated to be $120,000 next year, $180,000 in 2 years, and $250,000 in 3 years. What is the present worth of the costs at an interest rate of 10% per year compounded continuously?
Centrum Water & Gas provides standby power to pumping stations using diesel-powered generators. An alternative is the use of natural gas to power the generators, but it will be a few years before the gas is available at remote sites. Centrum estimates that by switching to gas, it will save $15,000 per year, starting 3 years from now through the end of year 20. At an interest rate of 8% per year, determine the present worth of the projected savings.

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EBK BASICS OF ENGINEERING ECONOMY

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