You are faced with a decision on an investment proposal. Specifically, the estimated additional income from the investment is $180,000 per year; the initial investment costs are $640,000; and the estimated annual costs are $44,000, which begin decreasing by $4,000 per year starting at the end of the second year. Assume an 8- year analysis period, no salvage value, and MARR = 15%. (a) What is the IRR of this proposal? Is it a profitable investment? (Use i = 20% as an initial guess) (b) What are the simple and compounded payback periods at i= MARR?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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You are faced with a decision on an investment proposal. Specifically, the estimated
additional income from the investment is $180,000 per year; the initial investment
costs are $640,000; and the estimated annual costs are $44,000, which begin
decreasing by $4,000 per year starting at the end of the second year. Assume an 8-
year analysis period, no salvage value, and MARR = 15%.
(a) What is the IRR of this proposal? Is it a profitable investment? (Use i = 20% as
an initial guess)
(b) What are the simple and compounded payback periods at i= MARR?
Transcribed Image Text:You are faced with a decision on an investment proposal. Specifically, the estimated additional income from the investment is $180,000 per year; the initial investment costs are $640,000; and the estimated annual costs are $44,000, which begin decreasing by $4,000 per year starting at the end of the second year. Assume an 8- year analysis period, no salvage value, and MARR = 15%. (a) What is the IRR of this proposal? Is it a profitable investment? (Use i = 20% as an initial guess) (b) What are the simple and compounded payback periods at i= MARR?
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