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Q: A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.

  • 1
    3 hours
  • 2
    5 hours
  • 3
    4 hours
  • 4
    8 hours
  • Show Answer
  • Workspace

Answer : 3. "4 hours"
Explanation :

x=13 km/hr, y=4 km/hr

x+y=17 km/hr

Total Distance=68 km

Total Time=68/17=4 hours

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