A 150 m train at 72 km/h crosses a 250 m long platform. Time taken?

  1. 12 s
  2. 7 s
  3. 20 s
  4. 25 s
Answer

C) 20 s

Distance = 150 + 250 = 400 m; speed = 20 m/s; time = 400 div 20 = 20 s.

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