Multiple choice

A train 150 m long takes 30 seconds to cross a bridge 500 m long. How much time will the train take to cross a platform 370 m long?

  1. 36 sec

  2. 30 sec

  3. 24 sec

  4. 18 sec
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Train crosses bridge: distance = 150 + 500 = 650 m in 30 sec. Speed = 650/30 m/s. For platform 370 m: distance = 150 + 370 = 520 m. Time = 520 / (650/30) = 520 × 30/650 = 24 sec. Option C is correct. Option A reverses the calculation.

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