document.write( "Question 1165825: If Mark can do chores in ¾ of an hour, and if Bren and Mark together can do them in ½ of an hour, how long will it take them to Bren to finish the work? \n" ); document.write( "
Algebra.Com's Answer #790298 by ikleyn(52788)\"\" \"About 
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document.write( "The combined rate of work of Bren and Mark is  \"1%2F%28%281%2F2%29%29\" = 2 jobs per hour.\r\n" );
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document.write( "The individual rate of work by Mark is  \"1%2F%28%283%2F4%29%29\" = \"4%2F3\"  jobs per hour.\r\n" );
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document.write( "Hence, the individual rate of work by Bren is the difference  2 - \"4%2F3\" = \"2%2F3\"  of the job per hour.\r\n" );
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document.write( "It means that Bren can complete the job in \"3%2F2\" hours = 1 \"1%2F2\" hours = 1 hour and 30 minutes, working alone.    ANSWER\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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