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Q: The speed of a boat in still water is 12 km/hr. and the speed of stream is 3 km/hr. A person goes 135 km in the upstream by boat and returns to the starting point by walking in the downstream. Find the time taken to cover the total journey in hours.
  • A. 24
  • B. 48
  • C. 36
  • D. 30
Correct Answer: Option A -
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Explanations:

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