document.write( "Question 322915: A company's new printer can print checks three times faster than its old printer.
\n" ); document.write( "with both printers operating ,the checks can be printed in 6 minutes. how long would it take to print the checks with the new printer only ?
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Algebra.Com's Answer #231160 by mananth(16946)\"\" \"About 
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let the old printer's speed be x checks
\n" ); document.write( "1/x of the check it does it 1 minute
\n" ); document.write( "..
\n" ); document.write( "new printer will print at 3x checks
\n" ); document.write( "1/3x checks it prints in 1 minute
\n" ); document.write( "..
\n" ); document.write( "both print in 6 minutes
\n" ); document.write( "So 1/6 of the job they do in 1 minute
\n" ); document.write( "..
\n" ); document.write( "1/x + 1/3x = 1/6
\n" ); document.write( "3+1 /3x= 1/6
\n" ); document.write( "6*4=3x
\n" ); document.write( "3x=24
\n" ); document.write( "x= 8 checks by the old printer
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