document.write( "Question 1115468: A tank has two pipes. One pipe that can fill it with water in three hours and another pipe that can empty it in six
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Algebra.Com's Answer #730329 by josgarithmetic(39631)\"\" \"About 
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Rates, \"1%2F3-1%2F6\" tanks per hour\r
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\n" ); document.write( "\n" ); document.write( "\"2%2F6-1%2F6=1%2F6\", tanks per HOUR.\r
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\n" ); document.write( "\n" ); document.write( "This is 6 hour to FILL the 1 tank.
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