5. A steam boiler is purchased on the basis of guaranteed performance. A test indicates that the operating cost will be $300 more per year than the manufacturer guaranteed. If the expected life of the boiler is 20 years, and money is worth 8%, what amount should the purchaser deduct from the purchase price to compensate for the extra operating cost?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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5. A steam boiler is purchased on the basis of guaranteed performance. A test indicates
that the operating cost will be $300 more per year than the manufacturer guaranteed.
If the expected life of the boiler is 20 years, and money is worth 8%, what amount
should the purchaser deduct from the purchase price to compensate for the extra
operating cost?
6. A project has an investment cost of $10,000, uniform annual benefits of $2,400, and a
salvage value of $3,000 at the end of its 10-year useful life. At 12% interest, what is
the net present worth (NPW) of the project?
Transcribed Image Text:5. A steam boiler is purchased on the basis of guaranteed performance. A test indicates that the operating cost will be $300 more per year than the manufacturer guaranteed. If the expected life of the boiler is 20 years, and money is worth 8%, what amount should the purchaser deduct from the purchase price to compensate for the extra operating cost? 6. A project has an investment cost of $10,000, uniform annual benefits of $2,400, and a salvage value of $3,000 at the end of its 10-year useful life. At 12% interest, what is the net present worth (NPW) of the project?
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