Multiple choice

A 300 m long train is running at a speed of 25 m/s. It will cross a 200 m long bridge in

  1. 5 seconds

  2. 10 seconds

  3. 20 seconds

  4. 25 seconds
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total distance = 300m + 200m = 500m. Speed = 25 m/s. Time = Distance / Speed = 500 / 25 = 20 seconds.

AI explanation

Calculate the total distance to cross the bridge as the sum of the train length and the bridge length, giving 300 m plus 200 m equals 500 m. Apply the time formula by dividing the total distance by the speed of 25 m/s. Dividing 500 by 25 results in 20. It will cross the bridge in 20 seconds.

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