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Two trains start out at two different stations. The trains are 3 619 km apart. The trains start travelling towards each other. One train is travelling at 270 km/h and the other train at 247 km/h.If both trains started their journey at the same time, how long will they take to pass each other?

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解答

Twotrainsstartoutattwodifferentstations.Thetrainsare3619kmapart.Thetrainsstarttravellingtowardseachother.Onetrainistravellingat270km/handtheothertrainat247km/h.Ifbothtrainsstartedtheirjourneyatthesametime,howlongwilltheytaketopasseachother?

解答

time:7
求解步骤
Translate the problem into an equation:270x+247x=3619
求解 x,270x+247x=3619:x=7
time:7

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