Simon Corporation is studying a project that would have a ten-year life and would require a $120,000 Investment in equipment which has a $10,000 salvage value. The project would provide net cash inflows each year as follows: Years 1-3 $30,000 per year Years 4-6 $20,000 per year Years 7 - 10 $15,000 per year Net cash inflows are earned evenly throughout the year. The payback period is: 5.0 years 5.7 years 4.5 years 4.0 years None of the other answers are correct