dans un club sportif les trois quarts des adhérents sont mineurs et le tiers des adhérent majeurs a plus de 25ans
est il vrai qu'un adhérent sur six a entre 18ans et 25 ans?justifier par un calcul
svp quelqu'un pourrait m'aidé j'arrive pas a comprendre

By: USER2862
25 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques

dans un club sportif les trois quarts des adhérents sont mineurs et le tiers des adhérent majeurs a plus de 25ans
est il vrai qu'un adhérent sur six a entre 18ans et 25 ans?justifier par un calcul
svp quelqu'un pourrait m'aidé j'arrive pas a comprendre

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Answer (269)

Best Answer
(152)
3/4 st mineurs donc 1/4 majeur

Si 1/3 de 1/4 a plus de 25 ans  alors 2/3 de 1/4 a entre 18 et 25
2/3  X 1/4 = 2/12  donc 1/6

Answered on 25 Agustus 2025

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