A company has experienced the failure of a 15-kW motor on a wastewater pump that runs 3000 hours a year and has a load factor of 0.6. Determine whether the company should purchase a standard-efficiency motor (efficiency = 0.886) or a high-efficiency motor (efficiency = 0.923) by calculating Benefit to Cost ratio (B/C). Assume the new motor will last for 15 years and the companys investment rate is 15%. Energy cost = $0.05/kWh, demand cost = 7.00/kw/month, and the dierential cost of purchasing a high-versus standard-efficiency motor is $300.