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100 metres in 50 seconds = 2 metres per second.

1 hour = 60*60 = 3600 seconds so Ryan's speed = 2*3600 = 7200 metres per hour

1000 metres in a kilometre so 7.2 km per hour.

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14y ago
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Q: What is the speed of Ryan if he runs 100 meters in 50 seconds?
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