document.write( "Question 1195305: Brown can plant his lettuces in an hour and a half.His
\n" ); document.write( "son could plant them in two and a half hours.How
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Algebra.Com's Answer #827761 by ikleyn(52781)\"\" \"About 
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\n" ); document.write( "Brown can plant his lettuces in an hour and a half.
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document.write( "Brown   makes  \"1%2F1.5\" = \"1%2F%28%283%2F2%29%29\" = \"2%2F3\"  of the job per hour. It is his rate of work.\r\n" );
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document.write( "His son makes  \"1%2F2.5\" = \"1%2F%28%285%2F2%29%29\" = \"2%2F5\"  of the job per hour. It is his rate of work.\r\n" );
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document.write( "Their combined rate of work is the sum\r\n" );
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document.write( "    \"2%2F3\" + \"2%2F5\" = \"%282%2A5%29%2F15+%2B+%282%2A3%29%2F15\" = \"16%2F15\"\r\n" );
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document.write( "of the job per hour.\r\n" );
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document.write( "Hence, it will take  \"15%2F16\"  of an hour to complete the job, working together.\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is a standard and typical joint work problem.\r
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\n" ); document.write( "\n" ); document.write( "There is a wide variety of similar solved joint-work problems with detailed explanations in this site.  See the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Using Fractions to solve word problems on joint work \r
\n" ); document.write( "\n" ); document.write( "    - Solving more complicated word problems on joint work \r
\n" ); document.write( "\n" ); document.write( "    - Selected joint-work word problems from the archive \r
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\n" ); document.write( "\n" ); document.write( "Read them and get be trained in solving joint-work problems.\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 topic
\n" ); document.write( "\"Rate of work and joint work problems\"  of the section  \"Word problems\".\r
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\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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