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Elon Musk is considering getting into robots. Assume a robot has a useful life of only one year and costs $2,000. Assume, also, that net of such operating costs (power, taxes, etc.), the additional revenue from the output of this robot is expected to be $2,200. What is the expected rate of return on this robot?
Multiple Choice:
a) 30 percent
b) 20 percent
c) 10 percent
d) 2 percent