Mathematics
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?

answer
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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