A train running at a speed of 30 kph crosses a platform double its length in 40 seconds.what is the length of the platform?

• Ans=222.22 meters
  If length of train=x mt. then length of platform=2x
  Speed of the train=30 kmph=30000/3600=100/12 m/s
  time taken to cross 40=3x/(100/12) => x=4000/36
  So length of platform=2x= 2*4000/36= 222.22 m.
• 11 years agoHelpfull: Yes(2) No(0)