a stream is flowing at 2km/h.if a boat cover 21km upstream in 2h,find the speed of the boat in still water.
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let the speed of boat in still water be x km/h
21/x-2= 2
21= 2x-4
2x=25
x=12.5 km/hr
plz mark it as brianliest answer
21/x-2= 2
21= 2x-4
2x=25
x=12.5 km/hr
plz mark it as brianliest answer
sonusamuel:
thanks
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