louna0107 louna0107

24-03-2024
Mathematics

contestada

24 Dans une académie, le nombre moyen de livres par
CDI est de 2 148.
Un éditeur souhaitant faire la promotion de sa nouvelle col-
lection envoie 4 livres à tous les CDI de cette académie. Quel
sera le nombre moyen de livres par CDI après cet envoi ?

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