Description : AC on an '03 Audi?
Last Answer : Do you mean freon?
Description : The cost of replacement of inefficient chiller with an energy efficient chiller in a plant was Rs. 10 lakh .The net annual cash flow is Rs 2.50 lakh .The return on investment is: a) 18% b) 20% c) 15 % d) none of the above
Last Answer : d) none of the above