Question: Mr. Asimov must replace the 15 robots on his assembly line. The Robo100 model costs $49379 per robot and they will last for three years. The EconoRobo model costs $11101 per robot and will last for two years. The Robo100 models will have an end of life salvage value of $12419 each. The EconoRobo models will not have any value at the end of their lives. The Robo100 models are also more energy efficient and it is estimated Mr. Asimov will be able to save a total of $6330 per year in energy costs. Mr. Asimov uses a MARR of 10% to evaluate potential investments.