SOLUTION: A motor boat traveled 12 miles with the current, turned around, and returned 12 miles against the current to its staring point. The trip with the current took 2 hours and the trip
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Question 68790: A motor boat traveled 12 miles with the current, turned around, and returned 12 miles against the current to its staring point. The trip with the current took 2 hours and the trip against the current took 3 hours. Find the speed of the boat and the speed of the current. Answer by checkley71(8403) (Show Source):
You can put this solution on YOUR website! 12/2=6 MPH WITH THE CURRENT
12/3=4 MPH AGAINST THE CURRENT
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To find the boat speed in still water you have to add & subtract the current from these speeds with and against the current.
6-x=4+x
-x-x=4-6
-2x=-2
x=-2/-2
x=1 mph which is the current
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(6-4)/2=1 MPH FOR THE CURRENT. THEREFORE THE SPEED OF THE BOAT IS 6-1=5 & 4+1=5
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