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Question

A goods train runs at the speed of 90 kmph and crosses a 500 m long platform in 40 seconds. What is the length of the goods train?

  • 250
  • 500
  • 750
  • 1000
Answer- C

Speed = 90 x 5/18 m/sec = 25 m/sec.

Time = 40 sec.

Let the length of the train be x meters.

Then, (x + 500)/40 = 25

x + 250 = 1000

x = 750.