Boat and Stream

3. A man can row downstream at 10 kmph and upstream at 5 kmp. The man's rowing rate in still water is--

  • ক. 2.5 km/hr
  • খ. 5 km/hr
  • গ. 7.5 km/hr
  • ঘ. 15 km/hr

উত্তরঃ 7.5 km/hr


13. Speed of the boat in standing water is 6 km/h and the speed of the stream is 2 km/h. What will be the total time if a man goes by the boat upstream 32 km and comes back to the starting point?

  • ক. 6 h
  • খ. 2 h
  • গ. 8 h
  • ঘ. 10 h

সঠিক উত্তরের জয় বিস্তারিত দেখুন

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