A firm is considering three mutually exclusive alternatives as part of an upgrade to an existing transportation network.

At EOY 10, alternative III would be replaced with another alternative III having the same installed cost and net annual revenues.
If MARR is 10% per year, which alternative (if any) should be chosen? Use the incremental IRR procedure.

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Installed cost $40,000 $30,000 $20,000 Net annual revenue 6,400 5,650 $5,250 Salvage value Useful life Calculated IRR 0 10 years 20 years 20 years 18.2% 15.0% 22.9%