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Multiple choice

A train going at a speed of 72 km/h crosses a 520 meter long platform in 46 seconds. Find the train length?

  1. 320

  2. 480

  3. 400

  4. 460

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Train speed = 72 km/h = 72×5/18 = 20 m/s. Distance covered in 46 seconds = 20×46 = 920 m. This equals train length + platform length. So train length = 920 - 520 = 400 m.

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