document.write( "Question 1032122: Three men can paint a wall in 2 hours. How many men would be needed to paint 3 identical walls in 3 hours? \n" ); document.write( "
Algebra.Com's Answer #646780 by ikleyn(52810)\"\" \"About 
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\n" ); document.write( "Three men can paint a wall in 2 hours. How many men would be needed to paint 3 identical walls in 3 hours?
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document.write( "The rate of work is \"1_wall%2F%283_men%2A2_hours%29\" = \"1%2F6\" \"wall%2Fman_hour%29\" in the first case.\r\n" );
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document.write( "In the second case the rate of work is \"3_walls%2F%28x_men%2A3_hours%29\" = \"3%2F%28x%2A3%29\" = \"1%2Fx\" in terms of the same unit,  \r\n" );
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document.write( "where  x  is an unknown number of mens in the second case.\r\n" );
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document.write( "So, we have a proportion\r\n" );
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document.write( "\"1%2F6\" = \"1%2Fx\".\r\n" );
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document.write( "From the proportion, x = 6.\r\n" );
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document.write( "Answer. 6 men are needed.\r\n" );
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