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Mathematics, 14.04.2021 01:00 chels8547

On considère l'énoncé suivant :150 garçons et 250 filles sont inscrits au conservatoire. 20 % des garçons et 30 % des filles sont pianistes.

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On considère l'énoncé suivant :150 garçons et 250 filles sont inscrits au conservatoire. 20 % des ga...

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