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Q: A train travelling at the speed of x km/h crossed a 200 m long platform in 30 seconds and overtook a man walking in the same direction at the speed of 6 km/h in 20 seconds. What is the value of x ?
  • A. 56
  • B. 60
  • C. 54
  • D. 50
Correct Answer: Option B -
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Explanations:

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