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Un article trouvé pour ce sujet.
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Pumping water into a tank |
2008-09-13 |
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nadha pose la question :
A water pump can fill a tank at the rate of 750 litres per hour.A tank has a capacity of
9000 litres. Find the time needed to fill 7/15 of the tank?
Stephen La Rocque lui répond. |
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