An investment project has annual cash inflows of $5,800, $6,300, $6,800, and $7,800, and a discount rate of 19 percent. (Do not round intermediate calculations. Round the final answers to 2 decimal places.)

a. What is the discounted payback period for these cash flows if the initial cost is $8,000?

Discounted payback period years

b. What is the discounted payback period for these cash flows if the initial cost is $11,000?

Discounted payback period years

c. What is the discounted payback period for these cash flows if the initial cost is $15,000?

Discounted payback period years