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A train 240 m long running at 54 km/h crosses a platform in 30 seconds. The length of the platform (in metres) is:

Competition practiceRatio, Percentage & Commercial Math
  • A180
  • B200
  • C210
  • D240

Step-by-Step Solution

54 km/ m/s. Distance covered = m = train + platform. Platform = 450 − 240 = 210 m.
Answer: C) 210

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