A Co is considering investing in a new project which will require an initial investment of $45,000 and will be used for 4 years. The scrap value will be 5,000. Depreciation is charged on straight line basis. Forecast operating profit ($) will be as following: Year 1 year 2 year 3 year 4 8,000 10,000 12,000 10,000 What is the pack back period of the project and ARR?