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Travelling in opposite directions |
2015-12-06 |
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Roselyn pose la question :
Jenny and Mark commute to work, travelling in opposite directions. Jenny leaves the house at 8 AM, and averages 35 kph. Mark leaves at 8:15 AM, and averages 40 kph.At what time will they be 40 kilometers apart?
Penny Nom lui répond. |
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