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Two runners are running a marathon. If Runner A runs 22 miles in 180 minutes, and Runner B runs 15 miles in 2 hours, which runner will take longer to finish the marathon?

1) Runner A
2) Runner B

Answer :

By comparing the average speeds, Runner A with a speed of 7.33 mph will take longer to finish the marathon than Runner B, who runs at 7.5 mph. Option 1

To determine which runner will take longer to finish a marathon, we must compare their average speeds. Runner A covers 22 miles in 180 minutes, while Runner B covers 15 miles in 2 hours (which is 120 minutes).

First, we convert their times to hours to compare their speeds: Runner A's time is 180 minutes / 60 minutes per hour = 3 hours. Thus, Runner A's speed is 22 miles / 3 hours = 7.33 miles per hour.

Runner B's speed, since already in hours, is simply 15 miles / 2 hours = 7.5 miles per hour. Considering a marathon is 26.22 miles long, Runner A, with a slightly lower average speed, will take longer to finish the marathon.

However, as the question does not specify whether the speeds stay constant or change over the course of the marathon, the conclusion is based on the assumption that the runners maintain their respective speeds. Option 1

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