Consider the following two mutually exclusive investments: Item Engine A Engine B Initial cost -11,049 AED -24,958 AED Annual savings 7,650 14,520 462AED 3,575 AED Annual arithmetic increase in savings (G) Service life If you used the infinite planning horizon with project repeatability likely (same costs and benefits) a) What is the IRR of Engine B using the direct solution method? (2 points) b) What is the IRR of Engine A using the trial and error method? (3 points) c) If one engine must be selected, which engine should you choose according to the IRR incremental analysis assuming that MARR 10%, i; -20% and ib = 6%.? (8 points) Consider the following two mutually exclusive investments: Item Engine A Engine B Initial cost -11,049 AED -24,958 AED Annual savings 7,650 14,520 462AED 3,575 AED Annual arithmetic increase in savings (G) Service life If you used the infinite planning horizon with project repeatability likely (same costs and benefits) a) What is the IRR of Engine B using the direct solution method? (2 points) b) What is the IRR of Engine A using the trial and error method? (3 points) c) If one engine must be selected, which engine should you choose according to the IRR incremental analysis assuming that MARR 10%, i; -20% and ib = 6%.? (8 points)