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Cuando yo tenía 20 años mi hermana tenía la mitad, yo tengo ahora 40 años. ¿Cuántos años tiene mi hermana?
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Cuando yo tenía 20 años mi hermana tenía la mitad, yo tengo ahora 40 años. ¿Cuántos años tiene mi hermana?

User Thomas Jaeger
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1 Answer

5 votes
30 años , la mitad de 20 es 10, ahora que tú tienes 40 a ese número quítale 10 sería 30 años que tiene tu hermana
User Lluis Sanchez
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