A train 200 meters long and travelling at a speed of 60 km h in how many seconds did train cross a p...........

Quantitative Aptitude ( CCS) Problems on trains

A train 200 meters long and travelling at a speed of 60 km/h in how many seconds did train cross a pole?

12s

25s

20s

15s

Let us consider that the end point has to travel 200 m so that the train will cross the pole ,

So velocity of end point = velocity of train = 60 km/h

= 60x1000/60x60 m/s

=60x5/18 m/s = 50/3 m/s

Now v=s/t

So, 50/3=200/t

1/3=4/t

t=12s

Hence, option 1 is the correct answer.

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