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 10P
To determine
Replacement of the defender.
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one factory manager bought a rare machine for $10 million. It is estimated that the sales value of the machine at the end of the first year will be $3 million and the machine will be worth $500,000 due to the demand by the antique dealers. The maintenance cost is expected to be $300,000 in the first 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. Calculate the economic life of this machine based on a 15% MCVO.
A) 7
B) 3
C)12
D) 6
E) 9
For P500, 000, an engineer purchased a piece of equipment. He added another P40,000 to his budget for installation and other costs. The equipment's expected useful life is ten years. The salvage value is x% of the original cost. The book value at the end of five years using the straight line technique will be P300,500. What is the numerical value of x?
Digital Tech Dynamics purchased a new quality inspection system for $550,000. The estimated salvage value was $50,000 after 10
years. Currently, the expected remaining life is 7 years with an AOC of $67,500 per year and an estimated salvage value of $40,000.
The new president has recommended early replacement of the system with one that costs $430,000 and has a 12-year economic
service life, a $35,000 salvage value, and an estimated AOC of $50,000 per year. If the MARR for the corporation is 12% per year, use
factor-based relations to determine the minimum trade-in value necessary now to make the president's replacement economically
advantageous.
The minimum trade-in value necessary now to make the president's replacement economically advantageous is $[
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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- State-of-the-art digital imaging equipment purchased 2 years ago for $50,000 had an expected useful life of 5 years and a $5000 salvage value. After its installation the performance was poor, and it was upgraded for $20,000 one year ago. Increased demand now requires another upgrade for an additional $22,000 so that it can be used for 3 more years. Its new annual operating cost will be $27,000 with a $12,000 salvage after the 3 years. Alternatively, it can be replaced with new equipment costing $65,000, an estimated AOC of $14,000, and an expected salvage of $23,000 after 3 years. If replaced now, the existing equipment can be traded for only $7000. Use a MARR of 10% per year. (a) Determine whether the company should retain or replace the defender now. (b) Based on the poor experience with the current equipment, assume the person doing this analysis decides the challenger may be kept for only 2 years, not 3, with the same AOC and salvage estimates for the 2 years. What is the decision?arrow_forwardAssume the MARR is 10% per year for this analysis. A presently owned machine that was purchased 8 years ago for $450,000 is under consideration for replacement. It has an annual operating cost of $120,000 per year and a salvage value of $40,000 whenever it is replaced. The challenger has a first cost of $670,000, an expected annual operating cost of $94,000, and a salvage value of $60,000 after its 10-year economic life. The breakeven market value of the presently owned machine required to make the AW values of the two machines the same, if the presently owned machine is kept for 5 more years and then replaced with the challenger that has the same AW, is closest to: (a) $196,340 (b) $255,390 (c) $325,360 (d ) $394,770arrow_forwardTo improve package tracking at a UPS transfer facility, conveyor equipment was upgraded with RFID sensors at a cost of $345,000. The operating cost is expected to be $148,000 per year for the first 3 years and $210,000 for the next 3 years. The salvage value of the equipment is expected to be $140,000 for the first 3 years, but due to obsolescence, it won’t have a significant value after that. The interest rate is 10% per year. Determine the ESL and equivalent AW using tabulated factors.arrow_forward
- 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 Certaintyarrow_forwardCompany X is looking to expand their operations to add a second product line capable of producing 1.25 Million units per year. The total estimated investment cost for the new line is $25 Million, with a salvage value equal to 20% of the purchase price at the end of the 6-year project life. The annual expected sales volume is shown below, in thousands of units: Year 1 2 3 4 5 6Volume 525,000 600,000 725,000 800,000 925,000 1,000,000 The average selling price is fixed for the project life at $125 per unit. Variable costs (per unit) include $35 for materials, $20 for manufacturing, and $18 for labor. There are additional fixed operating and maintenance costs totaling $14.25 Million per year. The company’s working capital calculations are based on a 2.5-month supply of raw materials and 1.5 months of combined inventory (WIP and finished goods) that it maintains to balance overall industry demand. FX…arrow_forwardA critical machine in BHP Billiton's copper refining operation was purchased 7 years ago for $160,000. Last year a replacement study was performed with the decision to retain it for 3 more years. The situation has changed. The equipment is estimated to have a value of $8000 if "scavenged" for parts now or anytime in the future. If kept in service, it can be minimally upgraded at a cost of $43,000 to make it usable for up to 2 more years. Its operating cost is estimated at $22,000 in the first year and $29,000 in the second year. Alternatively, the company can purchase a new system, the challenger, that will have an AWC of $-44,000 over its ESL. Use a MARR of 10% per year and annual worth analysis to determine when the company should replace the machine. The AW value of the challenger is $- [ and the AW value of the defender at the end of year 2 is $-[ The company should replace the machine (Click to select)arrow_forward
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