3.) Each of the three mutually exclusive alternatives shown has a 5year useful life. If the MARR is 10% which alternative should be selected? Cost Uniform annual benefit B/C ratio A $600 158.3 0.26 B $500 138.7 0.27 C $200 158.3 0.79 Reorder, then calculate PW of benefit and PW of costs or EUAB/EUAC and use the (5marks) defender/challenger method to aid in selecting the best alternative.

3.) Each of the three mutually exclusive alternatives shown has a 5year useful life. If the MARR is 10% which alternative should be selected? Reorder, then calculate PW of benefit and PW of costs or EUAB/EUAC and use the defender/challenger method to aid in selecting the best alternative. (5marks)