document.write( "Question 770562: worker A takes 8 hours to do a job.Worker B takes 10 hours to do the same job. How long should it takes both A and B working together but independently to do the same job? \n" ); document.write( "
Algebra.Com's Answer #469574 by oscargut(2103)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Answer 1/(1/8)+(1/10)) = 40/9\r
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