Engineering Economy (17th Edition)
17th Edition
ISBN: 9780134870069
Author: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher: PEARSON
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Question
Chapter 9, Problem 26P
(a):
To determine
Calculate the economic life.
(b):
To determine
Calculate the economic life.
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Students have asked these similar questions
A machine that has been used for 8 years has a market value of $2,500 now, which decreases by $100 each year for the next 5 years. Maintenance costs this year are $5k, and for the next 5 years they are estimated at $6k, $7k, $8k and $9k. Determine the marginal cost of extending the service for two years if the MARR is 12%.
Answer the questions:
a) How much is the loss in market value in year 2?
b) How much is the loss in interest in year 2?
c) What is the Marginal Cost in year 2?
d) If the machine's minimum EUAC is $5,500, when, in years, should the machine be replaced?
The marginal costs of a defender for each of the final four years of service are $1,300, $1,600, $2,000 and $2,400, respectively. If the challenger's minimum EUAC is $2,055, the defender should be replaced at
the end of what year? (Note: Choose "0" if recommending to replace immediately)
○ A. 4
B. 1
○ C. 0
○ D. 2
○ E. 3
An equipment cost $90.000 initially. The market value the first year was 80,000
and has been declining at the rate of $6.000 yearly. The O & M costs in year 1
were $7.000 and have been increasing by $2.000 from year 2. Determine the
minimum cost life of this equipment for a MARR of 10 %.
Based on the chart below,
a. what is the economic life of this piece of equipment.
b. What is the minimum economic cost?
OM cost PWCost
Year
Cost
Salvage
EUAC
90000
1
7000
$96,363.64
80000
($26,000.00)
9000
$103,801.65
74000
(524.571.43)
3
11000
$112,066.12
68000
($24.519.64)
4
13000
$120,945.29
62000
($24.795.52)
15000
$130,259.11
56000
($25,189.37)
6
17000
$139,855.17
50000
(525.631.41)
7
19000
$149.605.17
44000
(526.091.88)
8
21000
$159,401.83
38000
($26,556.05)
9.
23000
$169,156.07
32000
($27,015.85)
10
25000
$178,794.65
26000
(527.466.63)
O a. 6 years b. $27,466.63
O a. 8 years b. $80.000
O a. 3 years b. $25,519.64
O a. 10 years b. $24.664.99
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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