B2B Co. is considering the purchase of equipment that would allow the company to add a new product to its line.The equipment is expected to cost $360,000 with a six-year life and no salvage value. The incremental net cash flows that would be generated by the equipment are
Year 1....115,000
year 2... 138,000
year 3... 95,000
year 4.....91000
year 5....133,000
year 6....134,000
The payback period of this investment is closet to?