Engineering Economy (17th Edition)
17th Edition
ISBN: 9780134870069
Author: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher: PEARSON
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Chapter 9, Problem 27SE
To determine
Calculate the economic life.
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Suppose the reader has an old car, which is a gas guzzler. It is 10 years old and could sell for $400 cash to a local dealer. Assume that your MV in two years is zero. For the foreseeable future, annual maintenance expenses will average $800, and the car will get only 10 miles per gallon. Gasoline costs $1.50 per gallon, and the car is used an average of 15,000 miles per year. You now have the opportunity to replace your old car with a better one that costs $8,000. If I bought it, I would pay cash. Maintenance costs are expected to be negligible since it has a two-year warranty. This car averages 30 miles per gallon. Use the IRR method to determine which alternative should be selected. Use a two-year analysis period and assume that the new vehicle can sell for $5,000 at the end of year two. The MARR is 15% per year. Mention any other assumptions you make.
Miguel is trying to decide whether or not to replace the windows on his house. Miguel estimates that installing new windows
would cost $11,000 and would save him $2,000 per year in energy costs. Assume a MARR of 10% and a useful life of 10 years.
Compute the AW of this decision.
Carry all interim calculations to 5 decimal places and then round your final answer to a whole number. The tolerance is
±10.
What are the benefits of NPW analysis?
Chapter 9 Solutions
Engineering Economy (17th Edition)
Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Prob. 4PCh. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - A city water and waste-water department has a...Ch. 9 - Prob. 9PCh. 9 - Prob. 10P
Ch. 9 - Prob. 11PCh. 9 - Prob. 12PCh. 9 - Use the PW method to select the better of the...Ch. 9 - Prob. 14PCh. 9 - Prob. 15PCh. 9 - Prob. 16PCh. 9 - Prob. 17PCh. 9 - Prob. 18PCh. 9 - Prob. 19PCh. 9 - Prob. 20PCh. 9 - Prob. 21PCh. 9 - Prob. 22PCh. 9 - Prob. 23PCh. 9 - Prob. 24PCh. 9 - Prob. 25PCh. 9 - Prob. 26PCh. 9 - Prob. 27SECh. 9 - Prob. 28SECh. 9 - Prob. 29CSCh. 9 - Prob. 30CSCh. 9 - Prob. 31CSCh. 9 - Prob. 32FECh. 9 - Prob. 33FECh. 9 - Prob. 34FECh. 9 - Prob. 35FECh. 9 - Prob. 36FE
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