At the end of their useful lives alternatives A and C will be replaced with identical replacements (the repeatability assumption) so that a 20-year service requirement (study period) is met. Which alternative should be chosen and why? b. Now suppose that at their end of their useful lives, alternatives A and C will be replaces with replacement alternatives having an 8% internal rate of return. Which alternative should be chosen and why?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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. At the end of their useful lives alternatives A and C will be replaced with identical replacements (the repeatability assumption) so that a 20-year service requirement (study period) is met. Which alternative should be chosen and why?

b. Now suppose that at their end of their useful lives, alternatives A and C will be replaces with replacement alternatives having an 8% internal rate of return. Which alternative should be chosen and why?

Consider these mutually exclusive alternatives. MARR = 8% per year, so all the alternatives are acceptable.
Alternative
B
$425
$49.92
20
10%
Capital investment (thousands)
Uniform annual savings (thousands)
Useful life (years)
Computed IRR (over useful life)
A
$280
$45.57
10
10%
C
$550
$145.09
5
10%
Transcribed Image Text:Consider these mutually exclusive alternatives. MARR = 8% per year, so all the alternatives are acceptable. Alternative B $425 $49.92 20 10% Capital investment (thousands) Uniform annual savings (thousands) Useful life (years) Computed IRR (over useful life) A $280 $45.57 10 10% C $550 $145.09 5 10%
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