An investment project for solar home system involves an initial (and only) cost of Tk. 25,000 and net annual returns (benefits) as follows: Tk. 6,000 at the end of year 1 Tk. 8,000 at the end of year 2 Tk. 8,000 at the end of year 3 Tk. 10,000 at the end of year 4 Tk. 6,000 at the end of year 5 If the discount rate is 15%, is the project worthwhile? (5 points) [show all calculations of your benefit cost analysis]