A boat can cover 12 km up the stream and 75% of that distance down the stream in 8 hours. Find the speed of the boat in still water if the speed of the stream is 41 2/3 meters per minute.

Guest May 9, 2021

#1**0 **

s = still water speed 41 2/3 m/min = 2.5 km hr

s+2.5 = downstream speed for 9 km

s- 2.5 = upstream speed for 12 km

12 / (s-2.5) + 9 / ( s+ 2.5) = 8 solve for 's' can you take it from here?

ElectricPavlov May 10, 2021