10. juan ha leído ya la quinta parte de un
libro. cuando lea 90 páginas más, todavía
le...
![subject](/tpl/images/cats/mat.png)
Mathematics, 12.01.2020 17:31 postolachiveaceslav9
10. juan ha leído ya la quinta parte de un
libro. cuando lea 90 páginas más, todavía
le quedará la mitad del libro. ¿cuántas
páginas tiene el libro? ¿cuántas páginas
lleva leídas?
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Answers: 2
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