2 articles trouvés pour ce sujet.
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Three consecutive natural numbers |
2017-06-11 |
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Anita pose la question : Three consecutive natural numbers are such that the square of the middle number exceeds the difference of the square of the other two by 60. Find the numbers. Penny Nom lui répond. |
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39 consecutive natural numbers |
2003-08-19 |
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A student pose la question : Prove that among any 39 consecutive natural numbers it is always possible to find one whose sum of digits is divisible by 11. Penny Nom lui répond. |
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