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Answer:
se demora 03 horas
Step-by-step explanation:
120km-----------1 hora
(X) km?---------------2 horas------- X = 120 km x 2 horas =240 km/h / 1 hora =240 km
entonces:
80 km -----------1 hora
240 km --------- (X) horas? ------- X = 240 km x 1 hora = 240 km/h / 80 km = 3 horas