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Question
A train can travel 50% faster than a car. Both start from point A at the same time and reach point B which is 75 km away from A at the same time. On the way. however, the train lost about 12.5 min while stopping at the stations. The speed of the car is
Options
100 km/h
110 km/h
120 km/h
130 km/h
MCQ
Solution
120 km/h
Explanation:
Let the speed of the car be x km/h.
Then, the speed of the train = `150/100x=(3/2x)`km/h
∴ `75/x-75/((3/2)x)=125/(10xx60)`
⇒ `75/x-50/x=5/24`
∴ `x=((25xx24)/5)` = 120km/h
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Time, Speed and Distance (Entrance Exam)
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