Contemporary Engineering Economics (6th Edition)
6th Edition
ISBN: 9780134105598
Author: Chan S. Park
Publisher: PEARSON
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Chapter 14, Problem 20P
To determine
Calculate the economic service life.
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Greenleaf Company is considering the purchase of a new set of air-electric quill units to replace an obsolete machine. The current machine has a market value of zero; however, it is in good working order, and it will last physically for at least an additional five years. The new quill units will perform the operation with so much more efficiency that the firm's engineers estimate that labor, material, and other direct costs will be reduced by $3,000 a year if the units are installed. The new set of quill units costs $10,000 delivered and installed, and its economic life is estimated to be five years with zero salvage value. The firm's MARR is 10%.(a) What is the investment required to keep the old machine?(b) Compute the cash flow to use in the analysis of each option.(c) If the firm uses the internal-rate-of-return criterion, would the analysis indicate that the firm should buy the new machine?
Greenleaf Company is considering the purchase of a new set of air-electric quill units to replace an obsolete machine. The current machine has a market value of zero; however, it is in good working order, and it will last physically for at least an additional five years. The new quill units will perform the operation with so much more efficient that the firm's engineers estimate that labor, material, and other direct costs will be reduced by $3,000 a year if the units are installed. The new set of quill units costs $10,000 delivered and installed, and its economic life is estimated to be five years with zero salvage value. The firm's MARR is 10%.(a) What is the investment required to keep the old machine?(b) Compute the cash flow to use in the analysis of each option.(c) If the firm uses the internal-rate-of-return criterion, would the analysis indicatethat the firm should buy the new machine?
Gordon Inc. has a number of copiers that were bought four years ago for $20,000. Currently maintenance costs $2,000 a year, but the maintenance agreement expires at the end of two years and thereafter the annual maintenance charge will rise to $8,000. The machines have a current resale value of $8,000, but at the end of year 2 their value will have fallen to $3,500. By the end of year 6 the machines will be valueless and would be scrapped. Gordon is considering replacing the copiers with new machines that would do essentially the same job. These machines cost $25,000, and the company can take out an eight-year maintenance contract for $1,000 a year. The machines have no value by the end of the eight years and would be scrapped. Both machines are depreciated by using seven-year MACRS, and the tax rate is 35 percent. Assume for simplicity that the inflation rate is zero. The real cost of capital is 7 percent. When should Gordon replace its copiers, now, the end of year 2, or the end of…
Chapter 14 Solutions
Contemporary Engineering Economics (6th Edition)
Ch. 14 - Prob. 1PCh. 14 - Prob. 2PCh. 14 - Prob. 3PCh. 14 - Prob. 4PCh. 14 - Prob. 5PCh. 14 - Prob. 6PCh. 14 - Prob. 7PCh. 14 - Prob. 8PCh. 14 - Prob. 9PCh. 14 - Prob. 10P
Ch. 14 - Prob. 11PCh. 14 - Prob. 12PCh. 14 - Prob. 13PCh. 14 - Prob. 14PCh. 14 - Prob. 15PCh. 14 - Prob. 16PCh. 14 - Prob. 17PCh. 14 - Prob. 18PCh. 14 - Prob. 19PCh. 14 - Prob. 20PCh. 14 - Prob. 21PCh. 14 - Prob. 22PCh. 14 - Prob. 23PCh. 14 - Prob. 24PCh. 14 - Prob. 25PCh. 14 - Prob. 26PCh. 14 - Prob. 27PCh. 14 - Prob. 28PCh. 14 - Prob. 29PCh. 14 - Prob. 30PCh. 14 - Prob. 31PCh. 14 - Prob. 32PCh. 14 - Prob. 33PCh. 14 - Prob. 34PCh. 14 - Prob. 35PCh. 14 - Prob. 36PCh. 14 - Prob. 37PCh. 14 - Prob. 38PCh. 14 - Prob. 39PCh. 14 - Prob. 40PCh. 14 - Prob. 41PCh. 14 - Prob. 42PCh. 14 - Prob. 43PCh. 14 - Prob. 44PCh. 14 - Prob. 45PCh. 14 - Prob. 46PCh. 14 - Prob. 47PCh. 14 - Prob. 48PCh. 14 - Prob. 49PCh. 14 - Prob. 1STCh. 14 - Prob. 2STCh. 14 - Prob. 3ST
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