document.write( "Question 1200985: A water tank can be filled by an inlet pipe in
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Algebra.Com's Answer #835212 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "        The \"solution\" by @josgarithmetic, giving the answer  \"36%2F5\"  hours,  is incorrect and absurdist.\r
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document.write( "The rate of filling is  \"1%2F9\"  of the tank volume per hour.\r\n" );
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document.write( "The rate of draining is  \"1%2F36\"  of the tank volume per hour.\r\n" );
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document.write( "The net rate of filling is the difference  \r\n" );
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document.write( "    \"1%2F9+-+1%2F36\" = \"4%2F36-1%2F36\" = \"3%2F36\" = \"1%2F12\"  of the tank volume per hour.\r\n" );
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document.write( "It means that under given conditions, the tank will be filled in 12 hours.    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
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\n" ); document.write( "\n" ); document.write( "    - Solving more complicated word problems on joint work \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
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this textbook under the topic
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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
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