Multiple choice

A train crossed a platform in 30 seconds. The length of the platform is 300 metres. What is the length of the train?

  1. 200 metre

  2. 250 metre

  3. 300 metre

  4. Cannot be determined

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To cross a platform, the train must cover its own length plus the platform's length. We know the crossing time (30s) and platform length (300m), but without the train's speed, we cannot find the train's length. Two unknowns (train length and speed) cannot be solved with one equation.

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