document.write( "Question 1145330: A man rowed up a river of 1 kilometer in 6hours and back in 4 hours. Find the rate of the current and his rate of rowing in still water. \n" ); document.write( "

Algebra.Com's Answer #766564 by ikleyn(52787) $\"\"$ $\"About$

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document.write( "Let u be the rate of rowing, in km/h, and \r\n" );
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document.write( "let v be the rate of the current.\r\n" );
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document.write( "Then from the condition you have\r\n" );
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document.write( "    u + v =     (1)    (the speed moving downstream)\r\n" );
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document.write( "    u - c =     (2)    (the speed mowing upstream)\r\n" );
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document.write( "Add the equations to get\r\n" );
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document.write( "    2u =  +  =  +  = ,\r\n" );
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document.write( "     u =  kilometer per hour.\r\n" );
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document.write( "Then from (1)  v =  -  =  -  = .\r\n" );
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document.write( "ANSWER.  Rate of rowing in still water is  km/h.\r\n" );
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document.write( "         Rate of the current is  km/h.\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
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\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( "    - Wind and Current problems solvable by quadratic equations \r
\n" ); document.write( "\n" ); document.write( "    - Unpowered raft floating downstream along a river\r
\n" ); document.write( "\n" ); document.write( "    - Selected problems from the archive on the boat floating Upstream and Downstream \r
\n" ); document.write( "\n" ); document.write( "in this site, where you will find other similar solved problems with detailed explanations.\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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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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