A project requires certain investment X today. It's profitability index is 1.20. The project is evaluated based on the firm's 15% cost of capital. Year 1 this project will generate cash inflow of $50,000. This cash flow will increne by $25,000 each year for years 2 through 5 . In other words, starting year 1 , the cash flow will be 550,000 and this will increase by additional $25,000 for years 2 through 5 . What is the project's Internal rate of retum, the IRR = ? 21.76% 15.47% 20.01% 16.29%