Which of the following machines has the lowest user cost? Machine A costs $15,000 and depreciates at a rate of 25%; machine B costs $10,000 and depreciates at a rate of 20%; machine C costs $20,000 and depreciates at a rate of 10%; and machine D costs $17,000 and depreciates at a rate of 11%. The expected real interest rate is 5%.
(a) Machine A
(b) Machine B
(c) Machine C
(d) Machine D
Answer: B
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