document.write( "Question 931716: Three workers can complete a job in 3 hours, 6 hours, and 8 hours respectively. How long will it take the workers to complete the job if they work together? \n" ); document.write( "
Algebra.Com's Answer #565746 by TimothyLamb(4379)\"\" \"About 
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r = w/t
\n" ); document.write( "rates are additive:
\n" ); document.write( "r = 1/3 + 1/6 + 1/8
\n" ); document.write( "r = 0.625
\n" ); document.write( "---
\n" ); document.write( "t = w/r
\n" ); document.write( "---
\n" ); document.write( "t = 1/0.625
\n" ); document.write( "t = 1.6 hours
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