document.write( "Question 1096227: Three men can individually do a job in 5 ,6 and 7 hours respectively,, what fractions of the entire job is done by the three man together in 1 hour ? \n" ); document.write( "

Algebra.Com's Answer #710693 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The first man makes  of the job per hour.\r\n" );
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document.write( "The second makes  of the job per hour.\r\n" );
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document.write( "The third man makes  of the job per hour.\r\n" );
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document.write( "The three man working together make  of the job per hour,\r\n" );
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document.write( "    which is  =  of the job per hour.\r\n" );
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