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Chemistry, 09.09.2020 14:01 s6ties

. David jogs 2 km in 20 minutes, then 1 km in 15 minutes, and finally 2 km in 20 minutes. What is David’s average speed in km/min?

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. David jogs 2 km in 20 minutes, then 1 km in 15 minutes, and finally 2 km in 20 minutes. What is Da...

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