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It takes a runner 8 minutes to run 5 laps of a 400 m track. How many minutes will it take the runner, running at the same speed, to complete 9 laps of 200 m track?

 Sep 14, 2020
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8 minutes / (5x400)m = .004 min / meter

 

.004 min/meter * (9 * 200 meters) = 7.2 mins

 Sep 14, 2020

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