document.write( "Question 1196928: One pump can fill a gas tank in 8 hours. With a second pump working simultaneously, the tank can be filled in 3 hours. How long would it take the second pump to fill the tank operating alone?
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Algebra.Com's Answer #829977 by ikleyn(52784) $\"\"$ $\"About$

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\n" ); document.write( "One pump can fill a gas tank in 8 hours.
\n" ); document.write( "With a second pump working simultaneously, the tank can be filled in 3 hours.
\n" ); document.write( "How long would it take the second pump to fill the tank operating alone?
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document.write( "As the problem says, the combined rate of work of two pumps is    of the tank volume per hour.\r\n" );
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document.write( "The rate of work of one pump is    of the tank volume per hour.\r\n" );
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document.write( "Hence, rate of work of the second pump is the difference\r\n" );
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document.write( "     -  =  -  =  of the tank volume per hour.\r\n" );
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document.write( "It means that the second pump will fill the tank in  \r\n" );
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document.write( "     = 4 hours,  or 4 hours and 48 minutes.    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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