2. (2+8) a. Why IRR is not used for non-conventional cash flow? b. Mrs Auneea Haque is a buy-side analyst working in an investment firm. She is evaluating a project for investment. He calculated the following cashflows Year Cash flow 0 -50,000 1 18,000 2 18,000 3 22,000 4 9,000 5 5,000 - Calculate the followings if cost of capital is 13% NPV IRR Payback period Discounted Payback Period