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Mary roller skates with a constant speed of 8 km/h. How long will she take to travel a distance of 16 kilometres?
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Mary roller skates with a constant speed of 8 km/h. How long will she take to travel a distance of 16 kilometres?

User Lasean
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Mary has a speed of 8 kilometers per hour, you multiply 8 km/h by 2 to get 16 kilometers and 2 hours. It will take her 2 hours to travel 16 km

User DreamOfMirrors
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