document.write( "Question 1116569: Pump A and pump B each can empty a tank in 2 hours. Another pump, C, can empty the tank using double the time of pump A. If all three pumps are working together at the same time, how long will it take to empty the tank? \n" ); document.write( "

Algebra.Com's Answer #731450 by ikleyn(52779) $\"\"$ $\"About$

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document.write( "Since pump A can empty the tank in 2 hours, it drains    of the tank volume per hour.\r\n" );
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document.write( "Since pump B has the same rate of work (GIVEN !), it drains    of the tank volume per hour.\r\n" );
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document.write( "Since the pump C can empty the tank in 4 hours (GIVEN !), it drains    of the tank volume per hour.\r\n" );
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document.write( "Working together, the three pumps drain   =  of the tank volume per hour.\r\n" );
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document.write( "It means the the three pumps will empty the tank in   of an hour = 48 minutes working together.\r\n" );
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document.write( "Answer. It will take 48 minutes for 3 pumps to empty the tank working together.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "It is a typical and standard 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( "\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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