A sailor goes 8 km downstream in 40 min and returns in 1 hour. Determine the speed of the sailor in still water and the speed of the current.
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I want full solution.
Correct ans. will be marked as Brainliest. its urgent.
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I'll answer on paper for best understanding
Thus the speed of the sailor in still water is 10km/h and speed of the stream of 2km/h
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Hope this helps you
given ,
sailor's speed in goes to downstream
= 8/40 = 8000/40×60
= 80/24 = 10/3m/s = 10/3×60×60 = 12km/h
sailor's speed in return to downstream = 8km/h
sailor's
speed in still water = (12+8)/2 = 20/2
= 10km/h
stream speed is = 12 -10 |
= 2km/h (ans)