document.write( "Question 1009162: a certain printer can do a printing job in 3 hours. with a second printer , the same job can be done in 2 hours. how long would it take the second printer to do the same job? \n" ); document.write( "

Algebra.Com's Answer #624705 by ikleyn(52778) $\"\"$ $\"About$

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\n" ); document.write( "A certain printer can do a printing job in 3 hours. With a second printer, the same job can be done in 2 hours.
\n" ); document.write( "How long would it take the second printer to do the same job?
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document.write( "The rate of work of the first printer is  of the job per hour.\r\n" );
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document.write( "The rate of work of two printers (when they work together) is  of the job per hour, according to condition.\r\n" );
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document.write( "Hence, rate of work of the second printer (if it works alone) is  -  =  =  of the job per hour.\r\n" );
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document.write( "It means that the second printer can do the printing job in 6 hours working alone.\r\n" );
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document.write( "For similar problems on joint work see the lessons \r\n" );
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document.write( "  Using fractions to solve word problems on joint work  and\r\n" );
document.write( "  Solving more complicated word problems on joint work\r\n" );
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document.write( "in this site.\r\n" );
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