Two mutually exclusive alternatives A and B are being considered:
Year 0 1 2 3 4 5
A -$2500 746 746 746 746 746
B -$6000 1664 1664 1664 1664 1664
The minimum attractive rate of return is 8%. After calculation we can find that the internal rates of return:
for A, IRRA = 15%, for B, IRRB = 12% and for B-A, IRRB-A = 9.8%.