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Q: A train is moving from north to south direction. It overtakes Raj and Madhur who are walking in the same direction at the rate of 2 km/h and 4 km/h in 9 sec and 10 sec, respectively. If the train is x meters long, find the value of x.
  • A. 70
  • B. 30
  • C. 90
  • D. 50
Correct Answer: Option D -
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Explanations:

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