A firm considers an investment whose cost is $ 3 000 000 which is paid in 2020. The expected cash flows from this investment are as follows:

2021 $ 500 000

2022 $ 700 000

2023 $ 1 000 000

2024 $ 1 000 000

2025 $ 800 000

2026 $ 600 000

The firms desired target payback period is 3 years which means that firm accepts all projects with a payback period less than 3 years.

a) Find the exact payback period of this investment on the basis of simple payback period.

b) Should the firm accept or reject this investment (give your answer simply as accept or reject)