SOLUTION: The speed of a stream is 3 km/h. A boat travels 4 km upstream in the
same time it takes to travel 10 km downstream. What is the speed of
the boat.
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same time it takes to travel 10 km downstream. What is the speed of
the boat.
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Question 695477: The speed of a stream is 3 km/h. A boat travels 4 km upstream in the
same time it takes to travel 10 km downstream. What is the speed of
the boat. Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! The speed of a stream is 3 km/h. A boat travels 4 km upstream in the
same time it takes to travel 10 km downstream. What is the speed of
the boat.
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let x=speed of the boat in still water
x-3=speed upstream
x+3=speed downstream
travel time=distance/speed (same for upstream and downstream)
4/(x-3)=10/(x+3)
10x-30=4x+12
6x=42
x=6
speed of the boat in still water=6 km/hr
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