document.write( "Question 1067323: A small boat took 2 hr to travel Downstream with the four mile per current the return trip against the same current took 3 hours. Find the speed of the boat in Still water
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Algebra.Com's Answer #682533 by ikleyn(52786) $\"\"$ $\"About$

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\n" ); document.write( "A small boat took 2 hr to travel Downstream with the four mile per current the return trip against the same current took 3 hours.
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document.write( "The speed downstream is (u+4) miles per hour, where \"u\" is the boat speed in still water.\r\n" );
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document.write( "The speed upstream is (u-4) miles per hour.\r\n" );
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document.write( "The distance traveled downstream for 2 hours is d = (u+4)*2.\r\n" );
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document.write( "The distance traveled upstream in 3 hours is the same, which gives you an equation\r\n" );
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document.write( "(u+4)*2 = (u-4)*3.\r\n" );
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document.write( "Simplify and solve for \"u\":\r\n" );
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document.write( "2u + 8 = 3u - 12,\r\n" );
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document.write( "8 + 12 = 3u - 2u,\r\n" );
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document.write( "u = 20.\r\n" );
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document.write( "Answer. The boat speed in still water is 20 miles per hour.\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is a typical and standard Upstream and Downstream round trip word problem.\r
\n" ); document.write( "\n" ); document.write( "You can find many similar fully solved problems on upstream and downstream round trips with detailed solutions in lessons \r
\n" ); document.write( "\n" ); document.write( "    - Wind and Current problems \r
\n" ); document.write( "\n" ); document.write( "    - More problems on upstream and downstream round trips \r
\n" ); document.write( "\n" ); document.write( "    - Selected problems from the archive on the boat floating Upstream and Downstream \r
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\n" ); document.write( "\n" ); document.write( "Read them attentively and learn how to solve this type of problems once and for all.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this textbook under the section \"Word problems\", the topic \"Travel and Distance problems\".\r
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