A man travels 300km partly by train &partly by car.it takes 4hrs20min if he travels 160km by train &rest by car.It takes 15min more if he travels 100km by train &rest by car.Find the speed of car & train seperately.

Asked by  | 3rd Jul, 2011, 12:49: AM

Expert Answer:

Let the speed of the train be x kmph and speed of the car be y kmph.
4 hrs 20 mins = 4 + 20/60 = 13/3 hrs
4 hrs 20 mins + 15 mins = 4 hrs 35 mins = 55/12 hrs.
We know,
ATQ,
Hence, speed of the train = 80 kmph
           speed of the car = 60 kmph

Answered by  | 4th Jul, 2011, 10:57: AM

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