An investment project provides cash inflows of $680 per year for 12 years.

a. What is the project payback period if the initial cost is $2,720?

options:

4.00 years

4.04 years

3.80 years

3.88 years

b. What is the project payback period if the initial cost is $4,284?

options:

6.30 years

6.36 years

5.98 years

6.43 years

c. What is the project payback period if the initial cost is $8,840?

options:

3.01 years

Never

4.95 years

5.25 years

Thank you!