Rohit can row his boat at r oot31 km/h in still water. But he takes 1 hour more to row upstream in comparison to downstream. If the distance of upstream or downstream is 15 km, find the speed of the stream
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Hence upstream speed = 60 – 15 = 45 km/hr. So time taken to cover 20 km = 20/45*60 = 26.67min
Time requires to travel 20 km upstream is 26.67 min .
One can row 10 km in 10 minutes in still water . The same distance in 8 minutes with the stream .
In water, the direction along the stream is called downstream. And, the direction against the stream is called upstream. If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then: Speed downstream = (u + v) km/hr.
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total time required for travel 20km will be 27 minutes
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