6 actory suggested a maintenance cost of AED 8,000 per year for years and an increment of AED 750 per your herster into the factor I pay one AED 3000 at the end of year 5 Assume an interest rate of % and operation of 12 years oled the closest comedor estions from the answer's options provided below What is the present worth of base amount? AED 1.397 What is the present worth of gradient amount? . AED 57,070 How much should be set aside now to pay for the maintenance cost? . AED 50.143 . What is the equivalent annual cost for the overall maintenance? AED 2.27 AD 277 AD 12.500 AEDE