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? \n" );
document.write( "
Algebra.Com's Answer #540612 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 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? \n" ); document.write( "-------------- \n" ); document.write( "d = r*t \n" ); document.write( "t = d/r = 1/4 hour \n" ); document.write( "================ \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 \n" ); document.write( " |