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A passenger sitting in a train A moving at 90 km/h observes another train B moving in the opposite direction for 8 s. If the velocity of the train B is 54 km/h, then length of train B is:

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Note that we only use the length of the train that is being "observed" passing a "point passenger". We don't add the length of train A because the passenger is a single point observer.

Updated On: Apr 19, 2026

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Solution and Explanation

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A passenger sitting in a train A moving at 90 km/h observes another train B moving in the opposite direction for 8 s. If the velocity of the train B is 54 km/h, then length of train B is:

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Solution and Explanation

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