Multiple choice

A train crosses a platform in 60 seconds, travelling at a speed of 54 kmph. What is the length of the train if the length of the platform is 500 metres?

  1. 350 m

  2. 400 m

  3. 450 m

  4. 600 m
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Speed = 54 kmph = 54 * (5/18) = 15 m/s. Distance covered in 60 seconds = 15 * 60 = 900 meters. Since the train crosses a 500m platform, the train length = 900 - 500 = 400 meters.

AI explanation

Converting the speed using the standard formula, 54 kmph multiplied by 5/18 gives a speed of 15 m/s. The total distance traveled in 60 seconds is 15 multiplied by 60, which equals 900 m. Because this distance equals the length of the train plus the 500 m platform, we subtract 500 from 900 to find the train length. The length of the train is 400 m.

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