Un equipo de dos corredores ganó una carrera de automóviles a campo traviesa. Casa conductor de estuvo al volante la mitad del recorrido. Si uno corrió a 60 km/h en promedio y el otro a 20 km/h, también en promedio, ¿Cuál fue la rapidez media general si la distancia total recorrida fue de 600km?
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Un equipo de dos corredores ganó una carrera de automóviles a campo traviesa. Casa conductor de estu...
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