11) (8 pts) For the following cash flow determine the following: (a) what is the number of possible ROR values (b) find the EROR using the ROIC method if the investment rate is 15% per year (c) determine all possible IRR values using the IRR function in excel. (use guess parameter to get different IRR values) Year 0 1 2 3 4 NCF 48,000 20,000 -90,000 50,000 -10,000 11) (8 pts) For the following cash flow determine the following: (a) what is the number of possible ROR values (b) find the EROR using the ROIC method if the investment rate is 15% per year (c) determine all possible IRR values using the IRR function in excel. (use guess parameter to get different IRR values) Year 0 1 2 3 4 NCF 48,000 20,000 -90,000 50,000 -10,000