document.write( "Question 1118324: It takes 45 min for a mother to clean her house. Her daughter can do the job in 1 hour. If they work togther, how long will it take them to clean the house
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Algebra.Com's Answer #733590 by josgarithmetic(39615)\"\" \"About 
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JOB per HOUR,\r
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\n" ); document.write( "\n" ); document.write( "\"1%2F%283%2F4%29%2B1%2F1\"\r
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\n" ); document.write( "\n" ); document.write( "\"4%2F3%2B1\"\r
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\n" ); document.write( "\n" ); document.write( "\"4%2F3%2B3%2F3\"\r
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\n" ); document.write( "\n" ); document.write( "\"7%2F3\", JOBS per HOURS\r
\n" ); document.write( "\n" ); document.write( "or \"3%2F7\" HOURS per JOBS
\n" ); document.write( "which is about \"0.42857\" hours or about 25 minutes 40 seconds
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