document.write( "Question 1152252: It takes an older pump 3 times as long to drain a certain pool as it does a newer pump. Working together, it takes the two pumps 9 hours to drain the pool. How long will it take the older pump to drain the pool working alone? \n" ); document.write( "
Algebra.Com's Answer #774231 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Rate for old pump \"1%2F3t\"
\n" ); document.write( "Rate for new pump \"1%2Ft\"
\n" ); document.write( "Rate for both pumps combined \"1%2F9\"\r
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\n" ); document.write( "\n" ); document.write( "\"1%2F%283t%29%2B1%2Ft=1%2F9\"-----------solve and find the value of \"1%2F3t\".
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