document.write( "Question 397960: One pump can empty a tank three times as another. working together they can complete a job in four hours, find the rate of each pump \n" ); document.write( "
Algebra.Com's Answer #281974 by stanbon(75887)\"\" \"About 
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One pump can empty a tank three times as another. working together they can complete a job in four hours, find the rate of each pump
\n" ); document.write( "---
\n" ); document.write( "One pump rate: 1/x job/hr
\n" ); document.write( "Other pump rate: 1/(3x) job/hr
\n" ); document.write( "-----
\n" ); document.write( "Together rate: 1/4 job/hr
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\n" ); document.write( "Equation:
\n" ); document.write( "rate + rate = together rate
\n" ); document.write( "1/x + 1/(3x) = 1/4
\n" ); document.write( "---
\n" ); document.write( "Multiply thru by 12x to get:
\n" ); document.write( "12 + 4 = 3x
\n" ); document.write( "3x = 16
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\n" ); document.write( "One pump DATA:
\n" ); document.write( "x = 16/3 hr
\n" ); document.write( "Pump rate = (3/16) job/hr
\n" ); document.write( "-----
\n" ); document.write( "Other pump DATA:
\n" ); document.write( "time = 3x = 16 hr
\n" ); document.write( "Pump rate = 1/16 job/hr
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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