Multiple choice

A 200 metre long train is running at a speed of 90 km/hr. How long will it take to cross 800 metre long plateform ?

  1. 50 seconds

  2. 40 seconds

  3. 60 seconds

  4. 30 seconds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total distance = train length + platform length = 200 + 800 = 1000m. Speed in m/s = 90 × (5/18) = 25 m/s. Time = Distance/Speed = 1000/25 = 40 seconds. The train must cover its own length plus the platform to completely cross it.

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