document.write( "Question 1098169: Hello, can you help me solve this problem? Please?\r
\n" ); document.write( "\n" ); document.write( "Allan and Andrew can paint a room in 3hrs. It takes Allan 7 hrs to do this alone. Without Allan, how long will it take Andrew to paint the same room?\r
\n" ); document.write( "\n" ); document.write( "Thank you \n" ); document.write( "

Algebra.Com's Answer #712577 by ikleyn(52787) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "Their combined rate of work is  of the job per hour.\r\n" );
document.write( "\r\n" );
document.write( "Allan's individual rate of work is  of the job per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Hence, Andrew's individual rate of work is the difference  -  of the job per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( " -  =  -  = .\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Thus Andrew's individual rate of work is   of the job per hour.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Hence, it will take   hours = 5 hours and 15 minutes for Andrew to complete the entire job working alone.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "-----------------
\n" ); document.write( "It is a typical joint work problem.\r
\n" ); document.write( "
\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
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Read them and get be trained in solving joint-work problems.\r
\n" ); document.write( "
\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
\n" ); document.write( "
\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
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
\n" ); document.write( "
\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
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );