document.write( "Question 1005714: it takes 30 hours to fill a swimming pool using 4 pumps, how many hours would it take if used 5 pumps? \n" ); document.write( "
Algebra.Com's Answer #621859 by fractalier(6550)\"\" \"About 
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We have to calculate pump-hours for this one...
\n" ); document.write( "4 pumps * 30 hours = 5 pumps * x hours
\n" ); document.write( "120 = 5x
\n" ); document.write( "x = 24 hours
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