Multiple choice

A 250 m train is running at the average speed 90 km/hr. how long will it take to pass a standing man? एक 250 मी. लम्बी रेलगाड़ी 90 किमी प्रति घण्टे की औसत चाल से चल रही है। एक खड़े हुए आदमी को पार करने में उसे कितना समय लगेगा?

  1. 12.5 sec./से.

  2. 10 sec./से.

  3. 8 sec./से.

  4. 20 sec./से.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Distance = length of train = 250 m. Speed = 90 km/hr = 90 × (5/18) = 25 m/s. Time = Distance/Speed = 250/25 = 10 seconds. To pass a standing man, the train must cover its own length. Therefore, option B is correct.

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