a sailer car row a boat about 8 kilometres downstream and return back to the starting point in one hour for 40 minutes the speed of the stream to the Rhombus per hour find the speed of the boat in still water
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let the speed of boat in still water be x km/hr.
then speed in downstream=x+8km/hr
and in upstream=x-8
now time taken by downstream=8/x+8 hr.
and time taken in upstream = 8/x-8 okk
now equate the following and answer
then speed in downstream=x+8km/hr
and in upstream=x-8
now time taken by downstream=8/x+8 hr.
and time taken in upstream = 8/x-8 okk
now equate the following and answer
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