document.write( "Question 232146: Pump A can fill a water jar two times faster than Pump B. Working together, the two pumps fill water jars in five hours. How long does it take for each pump to fill a water jar individually?\r
\n" ); document.write( "\n" ); document.write( "I don't know how to solve, or the equations I would need.
\n" ); document.write( "

Algebra.Com's Answer #171674 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Let represent the number of hours it would take A to fill the jar by itself. Since A pumps twice as fast as B, it would take B two times longer to fill the jar, so represents the number of hours it would take B to fill the jar by itself.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Since is the amount of time for A to fill the jar, is the amount of the jar that A can fill in 1 hour. Likewise, B can fill in one hour. And together they can fill:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "of the jar in 1 hour.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Add 'em up:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "And we know it takes 5 hours to fill the jar working together, so we can conclude that together they can fill of the jar in 1 hour, therefore:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Solve for to get the time for A to fill the jar by itself (Hint cross-multiply). B is twice that value.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" );