document.write( "Question 824909: Two pipes can fill a tank in 18 minutes & 27 minutes individually.A third pipe can empty the full tank in 6 minutes.All the three pipes are opened when the tank was 2/3 full.In how many minute will the tank become empty?
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document.write( "A)11
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document.write( "B)9 \n" );
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Algebra.Com's Answer #496882 by AnlytcPhil(1806)![]() ![]() You can put this solution on YOUR website! Here is the correction of the first tutor's method, using draining rate \n" ); document.write( "instead of filling rate: \n" ); document.write( " \n" ); document.write( "The rate of DRAINING the tank is when all pipes are open, \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The tank at 2/3 full and having all three pipes open would be drained \n" ); document.write( "when m minutes pass: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \r\n" ); document.write( "Edwin \n" ); document.write( " \n" ); document.write( " |