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Problems on Trains - General Aptitude

Q1:

  A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?

A 230 m

B 240 m

C 260 m

D 270 m

ANS:D - 270 m

 
Speed = 72 x 5 m/sec = 20 m/sec.
18
  Time = 26 sec. Let the length of the train be x metres.  
Then, x + 250 = 20
26
  x + 250 = 520 x = 270.