What is the length of the bridge which a train 150 m long and traveling at 36kmph can cross in 20 se...........

Quantitative Aptitude (CDS) Problems on trains

What is the length of the bridge, which a train 150 m long and traveling at 36kmph can cross in 20 seconds, is;

Speed = 36(5/18)m/sec= 10m/sec
Time = 20 seconds
Let the length of bridge be x meters.
Then, (150+x)/20 = 10
150+x = 200
x = 200-150 = 50m

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