1. Which project should you choose between Project A and B ? Project A has a total benefit of $500,000 and a total cost of $450,000 Project B has a total benefit of $600,000 and a total cost of $500,000 2. What's the payback period when the initial investment is $500,000, cash inflow in year 1 is $100,000, cash inflow in year 2 is $130,000, cash inflow in year 3 is $160,000, cash inflow in year 4 is $190,000, and cash inflow in year 5 is $220,000 ? 3. What's the payback period when the initial investment is $500,000, cash inflow in year 1 is $100,000, cash inflow in year 2 is $100,000, cash inflow in year 3 is $100,000, cash inflow in year 4 is $100,000, and cash inflow in year 5 is $100,000 ? 4. What's the NPV when the initial investment is $500,000, cash inflow in year 1 is $200,000, cash inflow in year 2 is $200,000, cash inflow in year 3 is $200,000, cash inflow in year 4 is $200,000, cash inflow in year 5 is $200,000, cash inflow in year 6 is $200,000, cash inflow in year 7 is $200,000, and cash inflow in year 8 is $200,000 ? The required rate of return is 15%. Show how