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Mathematics, 05.11.2020 05:40 billey32
15. Dos llaves abiertas a la misma vez llenan una piscina en 2 horas. La primera
llave lo hace por sí sola en 3 horas menos que la segunda. ¿Cuántas horas
tarda cada una por separado en llenar la piscina?
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Answers: 1
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15. Dos llaves abiertas a la misma vez llenan una piscina en 2 horas. La primera
llave lo hace por...
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