document.write( "Question 1161576: Pump A can empty a swimming pool in 5 hours, pump B can empty it in 8 hours, and pump C can empty it in 10 hours. If all three of these pumps are used together, how long will it take to empty the pool? \n" ); document.write( "

Algebra.Com's Answer #785173 by ikleyn(52811) $\"\"$ $\"About$

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document.write( "Pump A makes    of the job per hour;\r\n" );
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document.write( "Pump B makes    of the job per hour;\r\n" );
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document.write( "Pump C makes    of the job per hour.\r\n" );
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document.write( "Working together, the three pumps make   =  =   of the job per hour.\r\n" );
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document.write( "Hence, it will take   hours = 2 hours = 2 hours and 21 minutes (approximately)  for the three pumps to empty the tank,\r\n" );
document.write( "working tofether.\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 introductory 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( "    - Joint-work problems for 3 participants\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( "\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
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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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