document.write( "Question 867599: it take 10 hours to a paint a fence it takes someone else 7 hours, how long does it take both of the mto paint a fence? \n" ); document.write( "
Algebra.Com's Answer #523104 by josgarithmetic(39620)\"\" \"About 
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\"1%2F10%2B1%2F7=R\", in fences per hour \n" ); document.write( "
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