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A boat takes half time in moving a certain distance downstream than upstream. what is ratio between rate in still water and rate of current



Let the time taken for downstream be T/2 and let the time taken for upstream be T
v-velocity in still water,u-velocity of stream
therefore (v-u)=(v+u)/2
therfore v/u=3/1

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The ratio is 3/1 i think
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