document.write( "Question 1147308: Tap A takes 6 minutes to fill a tank and Tap B takes 9 minutes to fill the same tank.Pipe C can empty the tank in 15 minutes.How long will it take to fill up the tank if the pipe is in use when both tapes are turned on? \n" ); document.write( "
Algebra.Com's Answer #768621 by josgarithmetic(39617)\"\" \"About 
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\"%281%2F6%2B1%2F9%29-1%2F15\", fill rate if both taps and the pipe are open\r
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\n" ); document.write( "\n" ); document.write( "\"%281%2F6%29%283%2F3%29%2B%281%2F9%29%282%2F2%29-1%2F15\"\r
\n" ); document.write( "\n" ); document.write( "\"%283%2B2%29%2F18-1%2F15\"\r
\n" ); document.write( "\n" ); document.write( "\"5%2F18-1%2F15\"\r
\n" ); document.write( "\n" ); document.write( "\"25%2F90-6%2F90\"\r
\n" ); document.write( "\n" ); document.write( "\"19%2F90\"\r
\n" ); document.write( "\n" ); document.write( "\"TIME\"-------\"90%2F19=4%2614%2F19\"\"minutes\"
\n" ); document.write( "4 minutes 44 seconds\r
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\n" ); document.write( "\n" ); document.write( "\"cross%28%283-2%29%2F18-1%2F15%29\"\r
\n" ); document.write( "\n" ); document.write( "\"cross%281%2F18-1%2F15%29\"--------this will be a negative value. The tank will never become filled this way.
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