1. A utility is considered two alternatives for serving a new customer. Both plans provide twenty years of service, but plan A requires one large initial investment, while plan B requires additional investment at the end of ten years. Neglect the salvage value, assume interest at 8%, and determine the present cost of both plans PlanA S50,000 none Plan B S30,000 S30,000 Initial Investment Investment at end of 10 years Annual property tax and maintenance For years 1-10 years S800 S500 Annual property tax and maintenance For vears 11-20 years S800 S900