document.write( "Question 883527: A does a job in 6 days while B can do the same job in 4 days. how long will it take A and B working together to finish the same job? \n" ); document.write( "
Algebra.Com's Answer #533605 by josgarithmetic(39620)\"\" \"About 
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Sum their rates when A and B work at the same time on the same job. The reciprocal is their time for 1 job.\r
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