A steamer goes downstream from one point to another in 7 hours.It cover the same distance up stream in 8 hours.If the speed of stream be 2 km/h, find the speed of the steamer in stillwater and the distance between the ports.
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7 = d/u+2 ... now u= d/8 substitute u ... 7 = d/d/8 + 2
on solving you will get distance = 112km
speed of stream( u) = 112/8 =14
hope so you got it
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