keyl3aa keyl3aa
  • 25-09-2022
  • Mathematics
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Problème n° 12 Le grand père et son petit-fils
Le grand père (amoureux des fractions !) dit à son petit-fils : « Si je calcule les trois
quarts des deux neuvièmes de mon âge, je trouve exactement le tien. »>
Sachant que le grand-père a soixante-dix-huit ans, quel est l'âge du petit-fils ?

Respuesta :

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