All techniques-Decision among mutually exclusive investments Pound Industries is attempting to select the best of three mutually exclusive projects. The initial investment and after-tax cash inflows associated with these projects are shown in the following table. a. Calculate the payback period for each project. b. Calculate the net present value (NPV) of each project, assuming that the firm has a cost of capital equal to 15%. c. Calculate the internal rate of return (IRR) for each project. d. Indicate which project you would recommend. a. The payback period of project A is years. (Round to two decimal places.)