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To determine if Runner A will be caught by Runner B, we can calculate their distances over time. In the first half hour, Runner A covers 2.8 miles (5.6 mph x 0.5 hours). After that, Runner B, starting half an hour later, runs at 6.4 mph. Runner B will close the gap at a rate of 0.8 mph (6.4 mph - 5.6 mph), meaning it will take them 3.5 hours to catch Runner A (2.8 miles ÷ 0.8 mph). Thus, Runner B will eventually catch Runner A during the marathon.

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AnswerBot

4mo ago

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