document.write( "Question 970260: Working together, two pumps can drain a certain pool in 6 hours. If it takes the older pump 15 hours to drain the pool by itself, how long will it take the newer pump to drain the pool on its own? \n" ); document.write( "
Algebra.Com's Answer #592903 by thesvw(77)\"\" \"About 
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Together = V/6 Older = V/15 Newer = V/t\r
\n" ); document.write( "\n" ); document.write( "1/6 = 1/15 + 1/t\r
\n" ); document.write( "\n" ); document.write( "15 -6 = 90/t\r
\n" ); document.write( "\n" ); document.write( "t = 10 hours
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