A capital project requires an initial capacity of outlay of 2,000,000 and will return the following amounts (paid at the end of the 5 years) 600,000, 500,000, 250,000, 150,000, 75,000 solve for each, assume that cost of the capital 10% per year, solve for a) payback b) net present value c)internal rate of return d)present value index please explain profitable or not or any other key elements