Question 777196
Current: It takes a boat 6.5 hours to travel 117 miles upstream against the current if the speed of the current is 5 miles per hour what is the speed of the boat in still water?
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let x=speed of the boat in still water
x-5=speed of the boat upstream
travel time=distance/speed
117/(x-5)=6.5
6.5x-32.5=117
6.5x=149.5
x=23
speed of the boat in still water=23 mph