5. A company is considering investing in one of a number of projects. The chosen project is to be financed by a bank loan of 500,000 at an effective rate of interest of 9% per annum. Any surplus funds may be invested at 6% per annum effective. One of the projects has an outlay of 500,000 and income of 70,000 per annum payable continuously for 20 years. (a) Calculate the discounted payback period for the project. (b) Calculate the accumulated profit after 20 years