document.write( "Question 1108048: A pump can fill an oil tank in 18 hours. Beginning with an empty tank, the pump and a second pump fill three-fifths of the tank in 6 hours. If the first pump is then shut off, how long will it take the second pump to finish filling the tank? \n" ); document.write( "
Algebra.Com's Answer #723054 by josgarithmetic(39617)\"\" \"About 
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Pump 1
\n" ); document.write( "18 hours to fill 1 tank\r
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\n" ); document.write( "\n" ); document.write( "Pump 1 plus Pump 2
\n" ); document.write( "6 hours to fill \"3%2F5\" tank\r
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\n" ); document.write( "\n" ); document.write( "Pump 2
\n" ); document.write( "x unknown hours to fill 1 tank\r
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\n" ); document.write( "\n" ); document.write( "\"1%2F18%2B1%2Fx=%283%2F5%29%2F6\"------solve to find the time for just pump #2 to fill 1 tank-ful by itself.\r
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\n" ); document.write( "\n" ); document.write( "\"1%2F18%2B1%2Fx=1%2F10\", LCD is 180x,...\r
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\n" ); document.write( "\"x=22%261%2F2\"-------hours for pump #2 to fill 1 tank.\r
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\n" ); document.write( "\n" ); document.write( "The question means, how much time for pump #2, to fill \"2%2F5\" of the tank.
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