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What is the average speed of a train that covers 80 km in 1 h, 200 km in 2 h, and 420 km in 4 h?
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What is the average speed of a train that covers 80 km in 1 h, 200 km in 2 h, and 420 km in 4 h?

User Justhalf
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Answer:

the answer is in the question 80 km in an hour

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User John Forbes
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