If machine A completes a task in 10 seconds and machine B completes the task in 2 seconds, how many times faster is machine B than machine A?

If machine A completes a task in 10 seconds and machine B completes the task in 2 seconds, how many times faster is machine B than machine A?



A. Four
B. 400%
C. Two and a half
D. Five


Answer: D. Five


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