Given the following cash flows for four projects, calculate the net present value using a…

Year Income Expenditure Income Expenditure Income Expenditure Income Expenditure
0 0 18,000 0 5,000 0 24,000 0 21,000
1 2,500 0 0 10,000 2,000 10,000 0 12,000
2 13,500 6,000 0 20,000 10,000 6,000 20,000 5,000
3 18,000 0 10,000 20,000 20,000 2,000 20,000 1,000
4 9,000 2,000 30,000 10,000 30,000 2,000 30,000 0
5 5,000 0 50,000 5,000 25,000 2,000 25,000 0

6 3,000 1,520 55,000 27,865 13,000 6,586 15,000 7,599

7 1,000 452 55,000 24,879 9,000 4,071 19,000 8,595