A person can swim in water with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, what will be the time taken by the person to go 68 km downstream?
A2.5 hours
B3 hours
C4 hours
D3.5 hours
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Related Questions:
The speed of a boat along the stream is 12 km/hr and speed of the boat against the stream is 6 km/hr, how much time will the boat take to cross a distance of 27 km in still water?
The speed of a boat in still water is 20 kmph, and the speed of the stream is 2 kmph. In how many hours would the boat cover a distance of 198 km downstream?
The speed of a boat in still water is 12 km/h. If the boat covers a distance of 38 km upstream in 4 hours, then the speed of the stream (in km/h) is:
പുഴയിൽ ഒഴുക്കിന് എതിരായി മണിക്കൂറിൽ 8 കി.മീ വേഗത്തിലും അനുകൂലമായി അതിലിരട്ടി വേഗത്തിലും ഒരു ബോട്ട് നീങ്ങുന്നു. നിശ്ചല ജലത്തിൽ ബോട്ടിന്റെ വേഗതയെന്ത് ?
A boat goes at 16 kmph along the stream and kmph against the stream. The speed of the boat (in kmph) in still water is :10