B. Problems and Questions Sabino Company is considering the purchase of a new heavy-duty industrial waste-water pump. Suppliers and experts have been consulted and the choice has been narrowed down to three pump models: Alpha, Beta and Gamma. The key parameters of the three pump models are shown below. Parameters Alpha Beta Gamma 1. Initial Cost 330,000 365,000 ($) 415,000 280,000 at EOY1 360,000 at EOY1 450,000 at EOY1 increasing decreasing increasing 2. Revenues annually ($) annually annually thereafter thereafter by thereafter by 2% by 1.0% $10,000 190,000 at EOY1 230,000 at EOY1 3. Operating increasing increasing 312,000 at EOY1 costs annually increasing annually ($) annually thereafter by thereafter by thereafter by $20,000 $2,400 3% 4. End-of-life salvage 10,000 -15,000 10,000 value ($) 5. Useful life 5 5 10 (years) All pump names and parameter values are fictitious. EOY = End-of-year Industry Standard = 3 years MARR = 10% . 13. The best pump model based on the discounted payback method. 14. Alpha's benefit/cost (B/C) ratio. 15. Gamma's benefit/cost (B/C) ratio. 16. Is the Alpha pump better than the Beta pump based on the incremental B/C ratio