document.write( "Question 736834: It takes 4 hours for 5 painters to paint a house. How long would it take for 9 painters to do the job?\r
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Algebra.Com's Answer #450015 by josgarithmetic(39620)\"\" \"About 
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The rate for the question can be based upon the work rate of 1 man.\r
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\n" ); document.write( "\n" ); document.write( "If 5 painters need 4 hours to \"paint a house\", then how much time does 1 painter alone need? Five times longer! This means 1 painter needs \"4%2A5=20\" hours to paint a house.\r
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\n" ); document.write( "\n" ); document.write( "Thinking of \"paint a house\" as the ONE JOB, one painter functions at the rate of 1 job per 20 hours, or \"1%2F20\" jobs per hour.\r
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\n" ); document.write( "\n" ); document.write( "Now, these uniform work rate situations are characterised as r*t=j, where r is rate in jobs per hour, t is hours, j is amount of jobs. When agents operate simultaneously, the rates are additive.\r
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