Multiple choice

How long does a train, 100 metres long running at the rate of 54 km./hr., takes to cross a platform of 125 metre long?

  1. 10 seconds

  2. 12 seconds

  3. 15 seconds

  4. 17.5 seconds

  5. 25 seconds
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total distance to cover = train length + platform length = 100 + 125 = 225 m. Speed = 54 km/hr = 54 × 1000/3600 = 15 m/s. Time = Distance/Speed = 225/15 = 15 seconds. Option B (12 seconds) would only account for 180m, not the full 225m needed.

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