This problem is useful for testing the ability of financial calculators and spreadsheets. Consider the following cash flows. How many different IRRs are there? Search between 20 percent and 70 percent. When should we take this project?

Cash ............................ Flow
0 ............................ −$ 3,024
1 ............................... 17,172
2 ............................ − 36,420
3 ............................... 34,200
4 ............................ − 12,000