3. Exercices corrigés de mathématiques (mise à niveau, concours) : Partages et mélanges

This video series will give you the tools to solve arithmetic problems encountered in some competitions. It can also be useful for people taking a refresher course or simply if you enjoy mathematics! In this third video, we'll see how to divide a value proportionally (or inversely proportionally) to numbers. We'll also cover the concept of mixtures, which helps determine the proportions in which elements must be added to obtain a desired price or temperature.