ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN: 9780190931919
Author: NEWNAN
Publisher: Oxford University Press
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Chapter 13, Problem 16P
To determine
To find:Optimal life for forklift.
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A factory manager bought a rare machine for $10 million. of the machine The sales value at the end of the first year will be $3 million and the machine will be sold by antique dealers. It is estimated to be valued at $500,000 due to the Initial cost of maintenance Expected to be $300,000 in 3 years and double each year thereafter. In this way, the maintenance cost of the 4th year is $600,000, the maintenance cost of the 5th year is $1,200,000, etc. will be. Calculate the economic life of this machine based on the Minimum Attractive Efficiency Ratio of 15%.
Three years ago, Witt Gas Controls purchased equipment for $80,000
that was expected to have a useful life of 5 years with a $9000 salvage value. Increased demand necessitated an upgrade costing $30,000 one year ago. Technology changes now require that the equipment be upgraded again for another $25,000 so that it can be used for 3 more years. Its annual operating cost will be $47,000, and it will have a $22,000 salvage after 3 years. Alternatively, it can be replaced with new
equipment that will cost $68,000 with operating costs of $35,000 per year and a salvage value of $21,000 after 3 years. If replaced now, the existing equipment will be sold for $9000. Calculate the annual worth of
the defender at an interest rate of 10% per year.
Answer: $ 54,025
Subject: ENGINEERING ECONOMICS
Lesson: Decisions Under Certainty
White Oaks Properties builds strip shopping centers and small malls. The company plans to replace its refrigeration, cooking, HVAC, and other equipment with newer models in the entire center built 9 years ago. The original purchase price of the equipment was $766,000 nine years ago and the operating cost has averaged $240,000 per year. Determine the equivalent annual cost of the installed equipment, if the company can now sell it for $160,000. The company’s MARR is 25% per year.
The equivalent annual cost of the installed equipment is $−
Chapter 13 Solutions
ENGR.ECONOMIC ANALYSIS
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- Hydrochloric acid, which fumes at room temperatures, creates a very corrosive work environment. A mixing machine working in this environment is deteriorating fast and can be used for only 1 more year, at which time it will be scrapped. It was purchased 3 years ago for $88, 000 and its operating cost for the next year is expected to be $67,000. A more corrosion-resistant challenger will cost $226,000 with an operating cost of $54,000 per year. It is expected to have a $ 60,000 salvage value after its 10-year ESL. At an interest rate of 15% per year, what minimum trade - in value will make the challenger economically attractive? On equating the AW values of the defender and the challenger, to calculate the minimum trade - in value of the challenger, the spreadsheet tool that should be used is GOAL SEEK. The minimum trade - in value that will make the challenger economically attractive will be $54, 703.96. Give correct answer Hydrochloric acid, which fumes at room temperatures, creates a…arrow_forwardHydrochloric acid, which fumes at room temperatures, creates a very corrosive work environment. A mixing machine working in this environment is deteriorating fast and can be used for only 1 more year, at which time it will be scrapped. It was purchased 3 years ago for $88,000 and its operating cost for the next year is expected to be $67,000. A more corrosion-resistant challenger will cost $226,000 with an operating cost of $54,000 per year. It is expected to have a $60,000 salvage value after its 10-year ESL. At an interest rate of 15% per year, what minimum trade-in value will make the challenger economically attractive? On equating the AW values of the defender and the challenger, to calculate the minimum trade-in value of the challenger, the spreadsheet tool that should be used is GOAL SEEK The minimum trade-in value that will make the challenger economically attractive will be $ 74,457arrow_forwardA large city in mid-west needs to buy a street-cleaning machine. A used vehicle will cost $75000 and has a market value of $20000 after its five-year life. A new system cost $150000 and has a market value of $40000 after five-years. The new system has some features that reduce labor hours compared with used system. the used system requires labor hours of 8 hours per day and 20 days per month. the labor costs are $50 per hour. the MARR is 12%. if the new system is expected to be able to reduce labor hours by 20% compared with the used system, which system should the city purchase? and how many hours must the system be operated at the break even?arrow_forward
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