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Un article trouvé pour ce sujet.
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Three goldfish |
2001-05-30 |
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Nathan pose la question :
A man has three goldfish. When the youngest goldfish was born, the oldest fish was three times the middle fish's age. Nine years ago the oldest fish's age was the sum of the two other fish's ages. How old are the three goldfish?
Penny Nom lui répond. |
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