document.write( "Question 966882: One pipe can fill a tank in 8 minutes and a second can fill it in 12 minutes. If the tank is empty, how long will it take both pipes to fill it. \n" ); document.write( "
Algebra.Com's Answer #590920 by ikleyn(52787)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "The first pipe fills  \"1%2F8\"  of the tank volume in  1 minute.\r
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\n" ); document.write( "\n" ); document.write( "The second pipe fills  \"1%2F12\"  of the tank volume in the same time.\r
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\n" ); document.write( "\n" ); document.write( "Working together,  the two pipes fill  \"1%2F8\" + \"1%2F12\" = \"3%2F24\" + \"2%2F24\" = \"5%2F24\"  of the tank volume in  1 minute.\r
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\n" ); document.write( "\n" ); document.write( "Hence,  it will take  \"24%2F5\" minutes for both pipes to fill the tank. \r
\n" ); document.write( "\n" ); document.write( "It is equal to  \"4\"\"4%2F5\"  minute =  4  minutes and  48  seconds.\r
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