Multiple choice

A train takes 10 seconds to cross a bridge of length 100 meter travelling at 90 km/hr. Find the length of the train in meters.

  1. 140

  2. 150

  3. 130

  4. 120

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Distance covered = length of train + length of bridge. Speed = 90 km/hr = 25 m/s. In 10 seconds, distance = 25 × 10 = 250m. So train length = 250 - 100 = 150m.