1.

Find the time taken by a train of length 120 metre to cross an electric pole with a speed of 108 kmph. 1. 4 sec2. 6 sec3. 5 sec4. 3 sec

Answer» Correct Answer - Option 1 : 4 sec

Given:

Speed of train = 108 km/hr

Length of train = 120 metre

Detailed solution:

108 km/hr = (108×5)/18 metre/sec

⇒ 30 m/sec

Time taken by train to cross an electric pole will be.

⇒ 120/30

⇒ 4

∴ Time taken by train to cross the pole is 4 seconds

 



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