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Speed of a train is 3 m/s - Math Riddle

84.Math Riddles
The speed of a train is 3 meters/second and it takes 10 seconds to cross a lamp post. What is the length of the train?
  • A.30
  • B.25
  • C.50
  • D.300
    • Explanation :  
      A 30 meters. The time taken by the train to pass the stationary object is equal to the length of the train divided by the speed of the train.