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To recover the energy lost in the primary cooling stage of a food processing system, a engineering design requires building a insulating chamber with the following bill of materials: Masonry labor cost would amount to R1, 350.00. A 10% allowance for total initial costs must be allocated for unforeseen contingencies. The design should be operational for 5 yrs, after which the chamber would be destroyed at a cost of P300 and scrap metals can be sold for P990.00. It was estimated that the energy savings from the insulating chamber would amount to P2,000 every month. To periodically maintain the chamber, a monthly budget of P150 would be adequate. If the company MARR is 20% each year, or an effective 1.530947% per month, evaluate the acceptability of the project using the following methods. 1. What is the Net Present value of the design? a. 41,736,70 c. 14,495.40 e. None of the choices b. 59,795.45 d. 12,759,15 2. What is the annual Capital recovery amount based on the annual worth method? a. 4,173.70 c. 1,449.50 e. None of the choices b. 5,979.55 d. 1,275.95 3. Which of the following rates closely approximates the design's monthly internal rate of return? a. 59.79% c. 14,49% e. None of the choices b. 41.73% d. 13.42% 4. For which value of Explicit Reinvestment rate of return would the design have if reinvestment rate is 1.2% each month? a. 59.79% c. 14.49% e. None of the choices b. 41.73% d. 13.42%