Payson Manufacturing is considering an investment in a new automated manufacturing system. The new system requires an Investment of $1,200,000 and elther has: 2. Even cash flows of $200,000 per year or b. The following expected annual cash flows: $150,000, $150,000, $400,000, $400,000, and $100,000. Required: Calculate the payback period for each case. Round your answer to one decimal place. a. years b. years