Question

A streamer goes upstream and covers the distance between two ports in 5 hours while it covers the same distance downstream in 4 hours . If the speed of the stream is 5 km per hour , find the speed of the steamer in still water.

Answer 1

Answer:

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Given

Speed of the stream in still water =1km/h

Let speed of the streamer =xkm/h

Speed downstream =(x+1)km/h

Speed upstream =(x−1)km/h

According to the given condition,

(x+1)×5=(x−1)×6

5x+5=6x−6

x=11

Hence , Speed of streamer in still water is 11km/h and

Distance between two ports =(11+1)×5=60km/h

I hope this is helpful for you