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what is the average speed of a train that covers 40 kilometers (km) in 1 hour, 100 kilometers (km) in 2 hours (hr), and 210 kilometers (km) in 4 hours (hr)?
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what is the average speed of a train that covers 40 kilometers (km) in 1 hour, 100 kilometers (km) in 2 hours (hr), and 210 kilometers (km) in 4 hours (hr)?

User Tyler Jensen
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Answer:


40 * 1 = 40

User X Y
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