Arithmetic Ability
Problems on Trains

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Q.

Length of train is 170 meters and speed of train is 63 km/hour. This train can pass a bridge in 30 seconds, then find the length of the bridge.

View Answer

Correct choice: A

Explanation:

Given speed = 63 km/hr = 63× 5/18=35/2 m/s Let the length of the bridge = x mts Given time taken to cover the distance of (170 + x)mts is 30 sec. We know speed = dis tan ce /time m/s ⇒352=170+x30 --> x = 355 mts.
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