Florida International University Engineering Economy: EGN 3613 ROR Assignment (Chapter 7-8) (Require up to 3 decimal places on ROR) 1. costs andbenefits of two water pumps, what istherate ofreturm on the difference ofthese alternatives Given the S3800 $3000 1200 +800 +1200 +1200 +800 -1200 -1200 What is your choice of these 2alternatives andwhy? 2. The manager of a local restaurant is trying to decide whether to buy a charcoal broilng unit or m electie for cookng hamburgers. A market study shows customen prefer charcoal broilng but the unit is more openswe. The manager's Minimum Ateacthe Rate of Retrn MARR) is20% Themanager astmates the costand net banefits from as follows: the two alternative End of Year $1450 +710 1-5 Find the rate of return of broiler and Brill nead esact values. And use tal rate ofretum analysis to determinate which alternative the manager should choose. 3. General Moton makes a "P.car automobile model The standard P-card is sold a a Chevy while a modified more "luxurious P.car is sold as a Buick. Although the two cars are sentially the same, the Buick cost $15,000 while the Chevy costs S13.000 A friend of youn clams that the Buick a better buy ban the Chey ince the Buick has a