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Un article trouvé pour ce sujet.
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Two swimmers |
2012-10-22 |
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Emily pose la question :
Two swimmers start from opposite sides of the pool. Each swimmer swims the length of the pool and back at a constant rate. They pass each other for the first time 40 feet from one side of the pool and for the second time 45 feet from the other side of the pool. What is the length of the pool?
Penny Nom lui répond. |
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