A low-carbon-steel machine part, operating in a corrosive atmosphere, lasts 8 years and costs $250 installed. If the part is treated for corrosion resistance, it will cost $325 installed. How long must the treated part last to be the preferred alternative, assuming 9% interest?

Essentials Of Investments
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ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
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A low-carbon-steel machine part, operating in a corrosive
atmosphere, lasts 8 years and costs $250 installed. If the part is
treated for corrosion resistance, it will cost $325 installed. How
long must the treated part last to be the preferred alternative,
assuming 9% interest?
Transcribed Image Text:A low-carbon-steel machine part, operating in a corrosive atmosphere, lasts 8 years and costs $250 installed. If the part is treated for corrosion resistance, it will cost $325 installed. How long must the treated part last to be the preferred alternative, assuming 9% interest?
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