Consider an 18-year old who is about to start a three-year course of study. The total cost of the course is $18,000, payable in advance. The returns take the form of annual $5,000 earnings premiums (paid at year-end) that the individual receives from age 21 through to age 25. Calculate the net present value of this investment assuming the discount rate of 5%. Should the project go ahead? Please, explain all the calculations! :)