document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1179657>Question 1179657</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the current in the ogeechee river flowed at 5 miles per hour. the boat could go 160 miles downstream in twice the time it took to go 40 miles upstream. what was the speed of the boat in still water, and what were the times? </SPAN>\n" );
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document.write( "the current in the ogeechee river flowed at 5 miles per hour. the boat could go 160 miles downstream in twice the time it took to go 40 miles upstream. what was the speed of the boat in still water, and what were the times?\r<BR>\n" );
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document.write( "speed of boat in still water =x mph<BR>\n" );
document.write( "current speed = 5mph\r<BR>\n" );
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document.write( "with current (x+5) mph====> 160 miles<BR>\n" );
document.write( "against current  speed (x-5)mph=====> 40 miles\r<BR>\n" );
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document.write( "160/(x+5) = 2*40/(x-5)\r<BR>\n" );
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document.write( "2/(x+5) = 1/(x-5)\r<BR>\n" );
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document.write( "2(x-5) =x+5<BR>\n" );
document.write( "2x-10=x+5<BR>\n" );
document.write( "x=15 mph speed of boat in still water\r<BR>\n" );
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document.write( " </SPAN>\n" );
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