document.write( "Question 700292: a man rows his boat up a river at a constant speed
\n" ); document.write( "when opposite a cabin on the shore, he drops a bottle in the water,
\n" ); document.write( "he continues rowing upstream for 15 minutes then he turns around and rows downstream until he catches up with the bottle, at which point he is 1 mile downstream from the cabin
\n" ); document.write( "how fast is the river flowing?\r
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Algebra.Com's Answer #431797 by ankor@dixie-net.com(22740)\"\" \"About 
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a man rows his boat up a river at a constant speed when opposite a cabin on the shore, he drops a bottle in the water,
\n" ); document.write( "he continues rowing upstream for 15 minutes then he turns around and rows downstream until he catches up with the bottle, at which point he is 1 mile downstream from the cabin
\n" ); document.write( "how fast is the river flowing?
\n" ); document.write( ":
\n" ); document.write( "Since they are both in the water, the current has no affect on their relationship
\n" ); document.write( "If he rowed 15 min away from the bottle, it would take him 15 min to return to it
\n" ); document.write( "The round trip would be 1/2 hr
\n" ); document.write( "During this half hour the current carried the bottle 1 mi, therefore
\n" ); document.write( "rate of the current = 2 mph
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