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Mathematics, 01.12.2020 17:00 kami23arap5p78v

En une heure, un ouvrier peut effectuer les 3/25 d'un ouvrage, un deuxiemeouvrier les 5/36 , un troisième les 7/30. 1- Quelle partie de l'ouvrage pouraient-ils faire en travaillant ensemble pandent un heure ? 2- Quelle fraction de l'ouvrage resterait encore à effectuer ?

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En une heure, un ouvrier peut effectuer les 3/25 d'un ouvrage, un deuxiemeouvrier les 5/36 , un troi...

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