document.write( "Question 935223: A pipe can fill a tank in 12 hours. Another pipe can do
\n" ); document.write( " the same job in 6 hours. How long will it take them if they work together?
\n" ); document.write( "

Algebra.Com's Answer #568392 by josgarithmetic(39800)\"\" \"About 
You can put this solution on YOUR website!
Fill a Tank, uniform rates problem.
\n" ); document.write( "RT=J, for rate, time, job. One tank filled is one job.
\n" ); document.write( "Sum of the individual rates is the combined rate for all agents working simultaneously.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%281%2F12%29%2B%281%2F6%29\"
\n" ); document.write( "\"1%2F12%2B2%2F12\"
\n" ); document.write( "\"3%2F12\"
\n" ); document.write( "\"highlight%281%2F4%29\", TANKSperHOUR; which means 4 hours to fill the tank.
\n" ); document.write( "
\n" );