Multiple choice

A train of length 800 m. is running at the speed of 114 km/hr. If the train crosses a tunnel in 1 minute. What is the length of the tunnel (in m)

  1. 11

  2. 700

  3. 36200

  4. 1100
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Train speed = 114 km/hr = 114 × (5/18) = 31.67 m/s. Time = 1 minute = 60 seconds. Total distance covered = speed × time = 31.67 × 60 = 1900 m. This distance equals train length + tunnel length. So tunnel length = 1900 - 800 = 1100 m.

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