At 10:00 a.m., Peter begins traveling on a certain bike path from Riverdale at a constant rate of 10 mph. If, at 2:00 p.m., John begins traveling from Riverdale on the same path at a constant rate of 15 mph, at what time will he catch up to Peter?
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A6:00 p.m.
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B6:30 p.m.
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C8:00 p.m.
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D8:30 p.m.
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E10:00 p.m.
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正确答案: E