Multiple choice

Find the length of train - Statement I: Pawan crosses the platform walking at 9 km/h in 60 seconds Statement II: Train moving at 45 km/h crosses a signal pole in 12 seconds. Statement III: Train crosses the platform moving at 36 km/hr in 30 seconds.

  1. Any two

  2. II or I and III

  3. I and III

  4. All three together

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

Statement II: Train length = speed × time = 45 × (5/18) × 12 = 150m. Statement I and III together give length from (train speed - walking speed) × 60 = train speed × 30. Both approaches yield same answer, so II alone OR I+III are sufficient.

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