Question

A person sees a train passing over 2 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 6 mins. What is the speed of the train?

A 90 km/hr Correct Answer Incorrect Answer
B 45 km/hr Correct Answer Incorrect Answer
C 108 km/hr Correct Answer Incorrect Answer
D 30 km/hr Correct Answer Incorrect Answer

Solution

Distance covered in 6/60 hours = (2 + 2/2) = 3 km Distance covered in 1 hour = 3 x (60/6) = 30 km So, speed of the train = 30 km/hr

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