Mathematics, 05.05.2021 16:50 janaemartinez42

7 máquinas con un rendimiento de 45% pueden hacer una obra en 60 días trabajando 11 horas diario. ¿Cuántos días de 10 horas diario de trabajo se empleará para hacer otra obra, cuya dificultad y volumen sean 8/7 y 5/9 del anterior respectivamente, si se emplean 12 máquinas con un rendimiento del 55%?

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