document.write( "Question 581047: One pump fills a tank 3 time as fast as another. Working together, they fill the tank in 6 minutes. How long does it take for each pump to fill the tank? \n" ); document.write( "
Algebra.Com's Answer #371419 by stanbon(75887)\"\" \"About 
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One pump fills a tank 3 time as fast as another. Working together, they fill the tank in 6 minutes. How long does it take for each pump to fill the tank?
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\n" ); document.write( "Slower pump DATA:
\n" ); document.write( "time = 3x minutes/job ; rate = 1/(3x) job/min
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\n" ); document.write( "Faster pump DATA:
\n" ); document.write( "time = x min/job ; rate = 1/x job/min
\n" ); document.write( "-------------------------------
\n" ); document.write( "Together DATA:
\n" ); document.write( "time = 6 min/job ; rate = 1/6 job/min
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\n" ); document.write( "Equation:
\n" ); document.write( "rate + rate = together rate
\n" ); document.write( "1/(3x) + 1/x = 1/6
\n" ); document.write( "---------
\n" ); document.write( "Multiply thru by 6x:
\n" ); document.write( "2 + 6 = x
\n" ); document.write( "x = 8 minutes (time for the faster pump)
\n" ); document.write( "3x = 24 minutes (time for the slower pump)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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