5. A small construction project having a useful life of 5 years has five mutually exclusive alternatives. With an MARR of 6% and using incremental IRR which alternative should be selected? Note: First solve for the IRR for each alternative. You may use a spreadsheet to iterate to solve, but solve for the IRR for Alternative Il 'by hand by iterating between the interest rate tables in the back of the book. Alternatives Initial Cost Uniform Annual Benefit $800 $210 $200 $60 $400 $90 IV $1000 $250 V $300 $60 5. A small construction project having a useful life of 5 years has five mutually exclusive alternatives. With an MARR of 6% and using incremental IRR which alternative should be selected? Note: First solve for the IRR for each alternative. You may use a spreadsheet to iterate to solve, but solve for the IRR for Alternative Il 'by hand by iterating between the interest rate tables in the back of the book. Alternatives Initial Cost Uniform Annual Benefit $800 $210 $200 $60 $400 $90 IV $1000 $250 V $300 $60