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Mathematics, 21.05.2021 01:00 BabyRage4900
9 obreros pueden terminar una obra en 6 días. Al cabo de 2 días, se integra un grupo de obreros de tal manera que la obra la entregan con un día de anticipación. ¿Cuántos obreros conformaban el segundo grupo?
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9 obreros pueden terminar una obra en 6 días. Al cabo de 2 días, se integra un grupo de obreros de t...
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