document.write( "Question 134620: An inlet pipe can fill a tank in 6 minutes. A drain can empty the tank in 8 minutes. If the tank is empty and both the pipe and drain are open, how long will it take before the tank over flows? \n" ); document.write( "

Algebra.Com's Answer #98491 by solver91311(24713) $\"\"$ $\"About$

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The inlet can fill the tank in 6 minutes, so it fills $\"1%2F6\"$ of the tank in 1 minute. Likewise the drain can empty the take at a rate of $\"1%2F8\"$ tank per minute.\r
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\n" ); document.write( "\n" ); document.write( "Filling and draining at the same time, the tank will fill at a rate of $\"1%2F6-1%2F8=4%2F24-3%2F24=1%2F24\"$ . So $\"1%2F24\"$ of the tank fills per minute, and the fluid will reach the top of the tank in 24 minutes. \n" ); document.write( "

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