Multiple choice

A train $300$ meters long is running at a speed of $25$ meters per second, it will cross a bridge $200$ meters ling 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

To completely cross the bridge, the train must cover its own length plus the bridge length: 300 + 200 = 500 m. At 25 m/s, the time required is 500/25 = 20 seconds.

AI explanation

The total distance the train must cover is its length plus the bridge's length, which is 300 m plus 200 m, totaling 500 m. Using the formula time equals distance divided by speed, we divide 500 m by the speed of 25 m/s. This calculation results in a time of 20 seconds.

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