document.write( "Question 1065811: A motorboat takes 5 hours to travel 200km going upstream. The return trip takes 4 hours going downstream.
\n" ); document.write( "What is the rate of the boat in still water and what is the rate of the current?
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Algebra.Com's Answer #680977 by Boreal(15235)\"\" \"About 
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Boat goes upstream at 40 km/h and downstream at 50 km/h
\n" ); document.write( "s-c upstream=40 km/h
\n" ); document.write( "s+c downstream=50 km/h
\n" ); document.write( "2s=90
\n" ); document.write( "s=45 km/h still water speed
\n" ); document.write( "c= 5 km/h
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