. An electric switch manufacturing company has to choose one of three different assembly methods. Method A will have a first cost of $40,000, an annual operating cost of $9000, and a service life of 2 years. Method B will cost $80,000 to buy and will have an annual operating cost of $6000 over its 4-year service life. Method C will cost $130,000 initially with an annual operating cost of $4000 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 vear.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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3. An electric switch manufacturing company has to choose one of three
different assembly methods. Method A will have a first cost of $40,000, an
annual operating cost of $9000, and a service life of 2 years. Method B will
cost $80,000 to buy and will have an annual operating cost of $6000 over
its 4-year service life. Method C will cost $130,000 initially with an annual
operating cost of $4000 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:3. An electric switch manufacturing company has to choose one of three different assembly methods. Method A will have a first cost of $40,000, an annual operating cost of $9000, and a service life of 2 years. Method B will cost $80,000 to buy and will have an annual operating cost of $6000 over its 4-year service life. Method C will cost $130,000 initially with an annual operating cost of $4000 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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