In a stream running at 2 km/hr, a motor boat goes 10 km upstream and back again to the starting point in 55 minutes. Find the speed of the motor boat in the still water.

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Boat and Stream

প্রশ্নঃ In a stream running at 2 km/hr, a motor boat goes 10 km upstream and back again to the starting point in 55 minutes. Find the speed of the motor boat in the still water.

  • ক. 6 km/hr
  • খ. 5.5 m/hr
  • গ. 6.45 km/hr
  • ঘ. 7 km/hr

সঠিক উত্তরঃ

6.45 km/hr
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Boat and Stream

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