A train travels 40% faster than a car. Both start from point A at the same time and reach point B, 140 km away at the same time. On the way the train takes 25 minutes for stopping at the stations. What is the speed (in km/hr) of the train?
A) 67 B) 134.4 C) 145.9 D) 160
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Step-by-step explanation:
Let t is time taken by car in minutes
=> t/(t - 25) = 140/100
=> 100t = 140t - 3500
t = 3500/40 = 87.50 minutes
=> Speed of car = 140/87.50 x 60 = 96 km/ph
Speed of car = 96 x 1.40 = 134.40 km/ph.
So that (B) 134.4 is your right answer.
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