answer 47 only, thanks

6-44 Which car has a lower EUAC if the owner can ean 5% in his best investment? Contributed by Paul R. McCright, University of South Florida $100,000 $150,00 Cost 30,000 4500 Uniform annual benefit 00 Midsize Hybrid Useful life, in years 20 $19,200 $25,500 1,000 Initial cost 6-48 Road Runner LLC (RRL) is considering three ate nate routes in the desert. RRL uses a MARR 5%. Using equivalent annual worth over the lea common multiple horizon, which choice is best? 1,500 Annual maintenance 1,200 2,500 Annual gas & oil (increasing 15% yearly) Salvage value (Year 8) 10,000 8,000 Route 105 Route 205 Route 305 Different Lives 6-45 A pump is needed for 10 years at a remote loca- tion. The pump can be driven by an electric motor if a power line is extended to the site. Otherwise, a gasoline engine will be used. Use an annual cash flow analysis and a 6% interest rate. How should the pump be powered? $460,000 $520,000 $395 00 First cost 135,000 100,000 Savings/year 950 5 7 Life Contributed by Ean Ng and Gana Natarajan, Orege State University 6-49 A suburban taxi company is considering buying tas with diesel engines instead of gasoline engines. The cars average 80,000 km a year. Use an annual cat flow analysis to determine the more economical Gasoline Electric First cost $2400 $9000 Annual operating cost 1200 250 Annual maintenance 300 50 choice if interest is 6%. Salvage value Life, in years 300 600 Diesel Gasoline 10 Vehicle cost Useful life, in years $24,000 $19,000 Fuel cost per liter 6-46 A firm is choosing between machines that perform the same task in the same time. Assume the mini- mum attractive return is 7%. Which machine would 92 88e Mileage, in km/liter Annual repairs 1 16 $ 900 S 700 you choose? Annual insurance premium 1,000 1,000 End-of-useful-life resale value 6.000 Machine X 4,000 Machine Y First cost $7500 $9250 Estimated life, in years 6-50 Assuming that Alternatives B and C are replace with identical units at the end of their useful live and an 8% interest rate, which alternative should be selected? Use an annual cash flow analysis. 7 12 Salvage value Annual maintenance cost 0 $2000 0 165 C 6-47 Alternative B may be replaced with an identical item every 20 years at the same cost and annual benefit. Using a 9% interest rate and an annual cash flow analysis, which alternative should be selected? Cost $12,500 $15000 $17.500 2.500 15 Annual benefit 1,500 3,500 Useful life (yrs) 7 00