Calculate VPN (net present value), VAE (equivalent annual value), B/C (benefit/cost ratio), IRR (internal rate of return) and VF (future value) VF at position 20

INTEREST RATE = 10%

27 27 27 27 24 21 18 15 12 9 6 6 0 1 2 Im 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A = 10 A= 10 30 30 30