Mathematics, 26.01.2021 23:30 AnxiousKid

Maria tiene tres relojes. Uno suena cada 40 min, otro cada 45min, y el último suena cada hora. Si a las 9 de la mañana coinciden los tres, ¿cuánto trdarán en volver a coincidir por primera vez?

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Maria tiene tres relojes. Uno suena cada 40 min, otro cada 45min, y el último suena cada hora. Si a...