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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 | |