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37.A hiker walking at a consant rate of 4 miles per hour is passed by a cylist traveling in the same direction along the same path at a constant rate of 20 miles per hour. The cyclist stops to wait for the hiker 5 minutes after passing her, while the hiker continues to walk at her constant rate. How many minutes must the cyclist wait until the hiker catches up? A. 6 2/3 B. 15 C. 20 D. 25 E. 26 2/3
The answer is C. |