A company is considering the purchase of a new piece of equipment for $90,000. Predicted annual cash inflows from this investment are $36,000 (year 1), $30,000 (year 2), $18,000 (year 3), $12,000 (year 4) and $6,000 (year 5). The payback period is:

4.50 years.

4.25 years.

3.50 years.

3.00 years.

2.50 years.