You have 3 projects with the following cash flows: Year Project 1 Project 2 Project 3 -$149 -823 21 1 2 3 4 $21 $39 $61 0 0 6.992 40 59 80 $81 -6.501 -247 a. For which of these projects is the IRR rule reliable? b. Estimate the IRR for each project (to the nearest 1%) c. What is the NPV of each project if the cost of capital is 5%? 20%? 50%? a. For which of these projects is the RR rule reliable? (Select from the drop-down menus) The IRR rule is reliable for project 1 Unless all of the negative cash flows of the project precede the positive ones, the IRR rule may give the wrong answer and should not be used. Furthermore, there may be muple R or the IRR may not exist b. Estimate the IRR for each project (to the nearest 1%). The IRR for project 1 is % (Round to the nearest integer)