A steamer goes downstream and covers the distance between two ports in 6 hours while it covers the same distance upstream in 7 hours. If the speed of the steamer is 4 km/h, find the speed of the steamer in still water.
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Answer:
4/13 kmph
Step-by-step explanation:
Distance between two ports be x.
Downstream Speed = u + v
Upstream Speed = u - v
where, u is speed of streamer in still water and v is speed of the stream.
Time required for distance traveled in upstream Speed = 7
Time required for distance traveled in downstream Speed = 6
Distance covered in both cases is equal.
Distance = speed * time
Distance traveled in upstream = distance traveled in downstream
7(u - v) = 6(u + v)
the speed of the streamer is 4 km/h,( given )
v = u/13 = 4/13 kmph
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