Basics Of Engineering Economy
2nd Edition
ISBN: 9780073376356
Author: Leland Blank, Anthony Tarquin
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 6, Problem 31P
To determine
Calculate the incremental
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Alternative R has a first cost of $73,000, annual M&O costs of $52,000, and a $20,000 salvage value after 5 years. Alternative S has a
first cost of $175,000 and a $43,000 salvage value after 5 years, but its annual M&O costs are not known. Determine the M&O costs
for alternative S that would yield a required incremental rate of return of 29%.
The M&O cost for alternative S is $
Two roadway designs are under consideration for access to a permanent suspension bridge. Design 1A will cost $3 million to build and $100,000 per year to maintain. Design 1B will cost $3.5 million to build and $40,000 per year to maintain. Both designs are assumed to be permanent. Use an AWbased rate of return equation to determine (a) the breakeven ROR, and (b) which design is preferred at a MARR of 10% per year.
The PW-based relation for the incremental cash flow series to find Δi* between the lower first-cost alternative X and alternative Y has been developed. 0 = − 40,000 + 9000(P∕A,Δi*,10) − 2000(P∕F,Δi*,10) Determine the highest MARR value for which Y is preferred over X. Write the single-cell spreadsheet function that displays Δi*.
Chapter 6 Solutions
Basics Of Engineering Economy
Ch. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - A University of Massachusetts study found that...Ch. 6 - Prob. 10P
Ch. 6 - The Closing the Gaps initiative by the Texas...Ch. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - A company that manufactures rigid shaft couplings...Ch. 6 - For each of the following scenarios, state whether...Ch. 6 - Prob. 28PCh. 6 - Prob. 29PCh. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - Prob. 32PCh. 6 - Prob. 33PCh. 6 - Prob. 34PCh. 6 - Prob. 35PCh. 6 - The four alternatives described below are being...Ch. 6 - Prob. 37PCh. 6 - Prob. 38PCh. 6 - Ashley Foods, Inc. has determined that only one of...Ch. 6 - Five revenue projects are under consideration by...Ch. 6 - Four different machines are under consideration...Ch. 6 - Prob. 42PCh. 6 - Prob. 43PCh. 6 - Prob. 44PCh. 6 - Prob. 45PCh. 6 - Prob. 46PCh. 6 - Prob. 47PCh. 6 - Prob. 48PCh. 6 - Prob. 49PCh. 6 - Prob. 50PCh. 6 - Prob. 51PCh. 6 - Prob. 52PCh. 6 - Prob. 53PCh. 6 - Prob. 54PCh. 6 - Prob. 55PCh. 6 - Prob. 56PCh. 6 - Prob. 57PCh. 6 - Prob. 58PCh. 6 - Prob. 59PCh. 6 - Prob. 60APQCh. 6 - Prob. 61APQCh. 6 - Prob. 62APQCh. 6 - Prob. 63APQCh. 6 - Prob. 64APQCh. 6 - Prob. 65APQCh. 6 - Prob. 66APQCh. 6 - Prob. 67APQCh. 6 - Prob. 68APQCh. 6 - Prob. 69APQCh. 6 - Prob. 70APQ
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- The PW-based relation for the incremental cash flow series to find 4/"between the lower first-cost alternative X and alternative Y has been developed. 0=-22,000+ 9000(P/A,4,10)+(-4000(P/F,A*,10)) Determine the highest MARR value for which Y is preferred over X. Any MARR value greater than % favors Y.arrow_forwardA total of $50,000 was allocated to a project to detect and reduce insider theft in the ZipCar auto parts store. Two alternatives identified as Y and Z are under consideration. The overall ROR on the $50,000 is expected to be 40%, with the rate of return on the $20,000 increment between Y and Z at 15% per year. If Z is the higher first-cost alternative, (a) what is the size of the investment required in Y, and (b) what is the rate of return on Y?arrow_forwardThe PW-based relation for the incremental cash flow series to find A/* between the lower first-cost alternative X and alternative Y has been developed. 0= -38,000 + 9000 (P/A,Ai *,10) + (-5000(P/F,Ai*,10)) Determine the highest MARR value for which Y is preferred over X. Any MARR value less than % favors Y.arrow_forward
- In order for a higher-cost alternative to be attractive, the value for the incremental net present worth must be I. Less than zero (0) J. Greater than or equal zero (0) K. Less than the MARR L. Greater than or equal to 1arrow_forwardAlternative A has a rate of return of 14% and alternative B has a rate of return of 17%. If the investment required in B is larger than that required for A the rate of return on the increment of investment between A and B is: O Larger than 176 O Between 14% and 1796 O Smaller than 1496 O Larger than 14%arrow_forwardAlternative R has a first cost of $100,000, annual M&O costs of $50,000, and a $20,000 salvage value after 5 years. Alternative S has a first cost of $175,000 and a $40,000 salvage value after 5 years, but its annual M&O costs are not known. Determine the M&O costs for alternative S that would yield a required incremental rate of return of 20%. Solve (a) by hand, and (b) using the Goal Seek tool or RATE function on a spreadsheet.arrow_forward
- A delivery truck has a book value of $10,000 in year 5. The purchase price of the truck is $30,000. If the minimum acceptable rate of return is 10%, what is the equivalent annual capital cost of the truck in year 7?arrow_forwardSelect the best option using Rate of Return Analysis (incremental Rate of Return) \table[[MARR, 20%,,,], [Useful Life, 5 years,,,], [Brand, D1, D2, D3, D4]] \table[[\table[[Capital], [Investment]], $100,00, $140, 600, $148, 200, $122,000. Solve using excel spreadsheet. ف c 3. Select the best option using Rate of Return Analysis (incremental Rate of Return) MARR Useful Life Brand 20% 5 years D1 D2 D3 D4 Capital $100,00. $140,600 $148,200 $122,000 Investment Annual Expenses $29,000 $16,900 $14,800 $22,100 Salvage $10,000 $14,000 $25,600 $14,000arrow_forwardAlternative A and B are two mutually exclusive cost alternatives, and one of them must be selected. Using Incremental Analysis, which of the alternatives should be recommended based on ERR (the External Rate of Return)? · MARR (Minimum acceptable rate of return) is 12% per year while the re-investment rate is 10% per year. The study period is 20 years. Assume repeatability is appropriate for this comparison. Alternative A B $ (101,000) $ (6,000) 20 years $ (6,000) $ (18,500 ) 10 years Initial capital investment Annual operating expenses Useful life Salvage value None Nonearrow_forward
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