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Mathematics, 30.06.2019 11:30 nhdhdj

Sophie habite toulouse et sa meilleure amie vient de déménager à bordeaux. elles décident de continuer à se voir. sophie consulte les tarifs de train entre les deux villes : un aller-retour coûte 40 € si elle achète un abonnement pour une année à 442 €, une allé retour lui coûte moitié prix. aider sophie à choisir la formule la plus avantageuse en fonction du nombre de voyages.

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