Multiple choice

A train crosses a pole in 12.5 seconds and crosses a platform of length 580 meter in 41.5 seconds . Then find the length of the train ?

  1. 280 meter

  2. 250 meter

  3. 350 meter

  4. 320 meter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let train length be L and speed be S. Crossing a pole takes 12.5 seconds: L = S × 12.5. Crossing a 580-meter platform takes 41.5 seconds: L + 580 = S × 41.5. Subtracting: (L + 580) - L = S × (41.5 - 12.5) → 580 = S × 29 → S = 20 m/s. Then L = 20 × 12.5 = 250 meters.

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