Planteo la proporción así:
20/70 = 350/x , multiplico en cruz y me queda 20 x= (70)(350), despejo x = (70)(350)/20 = 1225
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Planteo la proporción así:
20/70 = 350/x , multiplico en cruz y me queda 20 x= (70)(350), despejo x = (70)(350)/20 = 1225
POR REGLA DE TRES:
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20 obreros ------------- 350 mt
70 obreros ------------- X mt
Entonces:
350 × 70 24500
x = ----------------- = -------------- = 1225 mt
20 20
RESPUESTA:
≈≈≈≈≈≈≈≈≈≈≈≈
70 obreros harán 1225 mt