An electric switch manufacturing company has to choose one of three different assembly methods. Method A will have first cost of $ 40,000, an annual operating cost of $9,000 and a service life of 2 years. Method B will cost $80,000 to buy and will have an annual operating cost of $6,000 over its 4 year service life. Method C will cost $130,000 initially with an annual operating cost of $4,000 over its 8-year life. Methods A and B will have no salvage value, but method C will have some equipment worth an estimated $12,000. Which method should be selected? Use present worth analysis at an interest rate of 10% per year.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Problem 2.
An electric switch manufacturing company has to choose one of three different assembly methods.
Method A will have first cost of $ 40,000, an annual operating cost of $9,000 and a service life of 2
years. Method B will cost $80,000 to buy and will have an annual operating cost of $6,000 over its 4
year service life. Method C will cost $130,000 initially with an annual operating cost of $4,000 over
its 8-year life. Methods A and B will have no salvage value, but method C will have some equipment
worth an estimated $12,000. Which method should be selected? Use present worth analysis at an
interest rate of 10% per year.
Transcribed Image Text:Problem 2. An electric switch manufacturing company has to choose one of three different assembly methods. Method A will have first cost of $ 40,000, an annual operating cost of $9,000 and a service life of 2 years. Method B will cost $80,000 to buy and will have an annual operating cost of $6,000 over its 4 year service life. Method C will cost $130,000 initially with an annual operating cost of $4,000 over its 8-year life. Methods A and B will have no salvage value, but method C will have some equipment worth an estimated $12,000. Which method should be selected? Use present worth analysis at an interest rate of 10% per year.
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