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Lunna [17]
3 years ago
7

Una persona viaja a la ciudad X a la ciudad Y de la siguiente manera: la mitad del recorrido lo realiza en tren, la tercera part

e del resto del recorrido en bicicleta y el resto en un automóvil. Si la distancia recorrida en automóvil fue de
100Km, entonces la distancia entre las ciudades es...
Mathematics
1 answer:
hodyreva [135]3 years ago
5 0
Tenemos que

R------------ > recorrido total
x---------------- > viaje en tren--------------- > (1/2)*R 
y----------------- > viaje en bicicleta-------------(1/2)*(1/3)*R=(1/6)*R
z------------------- > viaje en automovil --------- > (1/2)*(2/3)*R=(2/6)*R=100 km
R=x+y+z
resolviendo nos queda que
(2/6)*R=100--------------- > R=100*6/2=300 km
viaje en tren----------- > (1/2)*R=300/2=150 km
viaje en bicicleta------- > (1/6)*R=300/6=50 km
( estos dos ultimos calculos no lo estan pidiendo y no hacen falta para contestar la pregunta, simplemente se realizan a manera didactica)

La respuesta  es
La distancia entre las dos ciudades es de 300 km
 
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