Multiple choice

A train is running at a constant speed of 54 km/hr. Let the time taken by the train to cross a tunnel, which is 600 m long, is T seconds. Then, the value of 2T/60 will be

  1. 1/2

  2. 2/3

  3. 1

  4. 4/3

  5. None of these

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

Speed of train = (54 X 5)/18 m/sec = 15 m/sec Therefore, time taken by the train to cross the tunnel = 40 sec Therefore, T = 40 Therefore, 2T/60 = 80/60 = 4/3