The ratio of the speed of a boat downstream to upstream is 5 : 3 5 : 3 5 : 3 . If the boat takes $5$ hours to cover 30 k m 30 { km} 30 km upstream, wh...
Question
The ratio of the speed of a boat downstream to upstream is . If the boat takes $5$ hours to cover upstream, what is the time taken by the boat to cover downstream?