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A hiker walking at a constant rate of 4 miles per hour ispassed by a cyclist traveling in the same direction along the same path at aconstant rate of 20 miles per hour. Thecyclist stops to wait for the hiker 5 minutes after passing her, while thehiker continues to walk at her constant rate. How many minutes must the cyclist wait until the hiker catches up? (A) 6又2/3 (B) 15 (C) 20 (D) 25 (E) 26又2/3 |
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