You have invested $2,00,000 in a project. You expect:

1. $70,000 in the first year of the project;
2. $60,000 in the second year of the project;
3. $55,000 in the third year of the project;
4. $40,000 in the fourth year of the project;
5. $30,000 in the fifth year of the project;
6. $25,000 in the sixth year of the project.

Calculate the pay back period of the above data