Answer:
Project 1
Explanation:
IO PI IRR LIFE
Project 1 $300,000 1.12 14.38% 15 years
Project 2 $150,000 1.08 13.32% 6 years
Project 3 $100,000 1.20 16.46% 3 years
Assume that the cost of capital is 12%.
We should invest in the projects that have the highest profitability index (PI) first.
PI = present value of project's cash flows / initial outlay
Projects with a high PI should also have high IRRs and this applies to this situation:
If the protects weren't mutually exclusive and the company had enough money for the 3 of them, then it should invest in all of them. But that is not the case, here, since the company has to decide in which project it will invest (only 1 project). The first option should be project 3, but since it cannot be repeated, and its life is short, I would go for project 1.
Besides, it is the only possible answer since you have to choose only 1 project (remember projects are mutually exclusive).