A firm evaluates 4 investment projects with cash flows as provided in the table below. The required rate of return (discount rate) is 5%.

1. Calculate the NPV, the PP. the IRR and the PI of the 4 projects.

2. If the firm faces no budget constraints, which projects should be selected?

3. If the firm has a budget of $150, which projects should be selected?

4. If the firm has a budget constraint of 160$ and it can take any project multiple times, what is the best project combination?

5. If the four projects are mutually exclusive, which should the firm do?

Year	A	B	C	D
0	-100	-200	-40	-20
1	30	50	30	10
2	50	50	8	10
3	70	110	8	10