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A train running at a speed of 45 km/h crosses a 100 m long platform in 60 seconds. The time taken by the train to cross an electric pole is:

Solution

Correct Option: 1

Speed = 45×5/18=12.545 \times 5/18 = 12.5 m/s. Distance covered in 60 s = 12.5×60=75012.5 \times 60 = 750 m.

Train length = 750100=650750 - 100 = 650 m.

Time to cross pole = 650/12.5=52650/12.5 = 52 s.

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