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2. A streamer goes downstream and covers the distance between two ports in three hours while it covers the same distance upstream in 4 hours. If the speed ofthe stream is 3km/hr, find the speed of the streamer in still water. |
| Answer» LET the speed of the STEAMER be SAND the distance between two points be dThen d/(x+3)=3 d=3.(x+3)and d/(x-3)=4 d=4.(x-3)4(x-3)=3(x+3)4x-3x=9+12x=21Ans | |