Multiple choice

A 420 metre long train crosses a 180 metre long platform in 12 seconds. What is the speed of the train (in km/hr.)?

  1. 150 km./hr

  2. 180 km./hr

  3. 120 km./hr

  4. 100 km./hr

  5. 110 km./hr
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total distance to cross the platform = length of train + length of platform = 420 + 180 = 600 metres. Time taken = 12 seconds. Speed in m/s = 600/12 = 50 m/s. Convert to km/hr: 50 × (18/5) = 180 km/hr. Option B is correct.

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