an believes the batteries can be expected to last only for the iarantee period. She does not want to invest extra money in a attery unless she can expect a 40% rate of return. If she plans to eep her present car another 2 years, which battery should she buy? wo investment opportunities are as follows: A B irst cost $200 $100 niform annual benefit 25 20 nd-of-useful-life salvage value 45 seful life, in years 15 10 t the end of 10 years, Alt. B is not replaced. Thus, the comparison is 5 years of A versus 10 years of B. If the MARR is 8%, which ternative should be selected?

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
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Jean believes the batteries can be expected to last only for the
guarantee period. She does not want to invest extra money in a
battery unless she can expect a 40% rate of return. If she plans to
keep her present car another 2 years, which battery should she buy?
Two investment opportunities are as follows:
A B
First cost
$200 $100
Uniform annual benefit
25
20
End-of-useful-life salvage value 45
Useful life, in years
15
10
At the end of 10 years, Alt. B is not replaced. Thus, the comparison is
15 years of A versus 10 years of B. If the MARR is 8%, which
alternative should be selected?
Transcribed Image Text:Jean believes the batteries can be expected to last only for the guarantee period. She does not want to invest extra money in a battery unless she can expect a 40% rate of return. If she plans to keep her present car another 2 years, which battery should she buy? Two investment opportunities are as follows: A B First cost $200 $100 Uniform annual benefit 25 20 End-of-useful-life salvage value 45 Useful life, in years 15 10 At the end of 10 years, Alt. B is not replaced. Thus, the comparison is 15 years of A versus 10 years of B. If the MARR is 8%, which alternative should be selected?
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