An investment project has annual cash inflows of $2,800, $3,700, $5,100, and $4,300, for the next four years, respectively. The discount rate is 9 percent.
a. What is the discounted payback period for these cash flows if the initial cost is $5,200?
b. What is the discounted payback period for these cash flows if the initial cost is $6,400?
c. What is the discounted payback period for these cash flows if the initial cost is $10,400?