SOLUTION: The worlds's strongest current, reaching 7 miles per hour, is the Saltstraumen in Norway. A motorboat can travel 54 miles downstream in the Saltstraumen in the same time it takes
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Question 1072052: The worlds's strongest current, reaching 7 miles per hour, is the Saltstraumen in Norway. A motorboat can travel 54 miles downstream in the Saltstraumen in the same time it takes to go 18 miles upstream. What is the speed of the boat i still water? Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! Let n be the speed of the boat in still water; and the current is 7 mph. So:
54/n+7=18/n-7
18n+126=54n-378
36n=504
n=14 mph as the speed of the boat in still water. ☺☺☺☺
