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Q: A train travels the distance between stations P and Q at a speed of 126 km/h while in the opposite direction it comes back at 90 km/h. Another train travels the same distance at the average speed of the first train. The time taken by the second train to travel 525 km is:
  • A. 5 hours
  • B. 4 hours
  • C. 4 hours 20 min
  • D. 5 hours 20 min
Correct Answer: Option A -
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Explanations:

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