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Q: A and B runs around a circular track. A beats B by one round or 10 minutes. In this race, they had completed 4 rounds. If the race was only of one round, find the A's time over the course:

A. 8 min
B. 7.5 min
C. 12.5 min
D. 12 min
Answer» C. 12.5 min


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