Long-term investment decision, payback method Personal Finance Problem Bill Williams has the opportunity to invest in project A that costs $7,500 today and promises to pay $2,300, 52,600,S2,600,S2,000 and $1,800 over the next 5 years. Or, Bill can invest $7.500 in project B that promises to pay $1,600, 91,600. $1.600, $3.500 and $4100 over the next 5 years. (Hint For mixed stream cash flows, calculate cumulative cash andlows on a year-to-year basis until the trial investment is recovered.) a. How long will it take for Bill to recoup his initial investment in project A? b. How long will it take for Bill to recoup his initial investment in project 82 c. Using the payback period, which project should Bill choose? d. Do you see any problems with his choice? a For Bol to recoup his initial investment in project A, it will take years. (Round to two decimal places.)