document.write( "Question 892581: A man can swim with a
\n" ); document.write( "speed of 4km/h in still water. How long
\n" ); document.write( "does he take to cross a river 1km wide if
\n" ); document.write( "the river flows steadily at 3km/h and he
\n" ); document.write( "makes his strokes normal to the river
\n" ); document.write( "current? How far down the river does he go
\n" ); document.write( "when he reaches the other bank?
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Algebra.Com's Answer #540612 by Alan3354(69443)\"\" \"About 
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A man can swim with a
\n" ); document.write( "speed of 4km/h in still water. How long
\n" ); document.write( "does he take to cross a river 1km wide if
\n" ); document.write( "the river flows steadily at 3km/h and he
\n" ); document.write( "makes his strokes normal to the river
\n" ); document.write( "current?
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\n" ); document.write( "d = r*t
\n" ); document.write( "t = d/r = 1/4 hour
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\n" ); document.write( "How far down the river does he go
\n" ); document.write( "when he reaches the other bank?
\n" ); document.write( "d = r*t
\n" ); document.write( "3 km/hr * 1/4 hr = 3/4 km
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