year Project A Project B 1 150000 50000 2 200000 150000 3 250000 200000 4 150000 300000 5 100000 200000 Two project A and B are available each costing 500000$. In comparing profitability of projets a discounted rate of 10% is to be used indicate which of project is would be more profitable investment using? 1. Discounted payback period method 2. NPV method 3. Profitability index 4. undiscounted payback period method