document.write( "Question 1207697: If 3 people can paint 2 rooms in 4 days, how many people are needed to paint 12 rooms in 6 days?
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Algebra.Com's Answer #845709 by Edwin McCravy(20059)\"\" \"About 
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If 3 people can paint 2 rooms in 4 days, how many people
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document.write( "3 people can paint 2 rooms in 4 days, so \r\n" );
document.write( "3 people can paint 6 rooms in 12 days. Therefore,\r\n" );
document.write( "6 people can paint 12 rooms in 12 days, so\r\n" );
document.write( "12 people can paint 12 rooms in 6 days.\r\n" );
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document.write( "ANSWER: 12 people\r\n" );
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document.write( "You can also use the worker-time-job formula, which is:\r\n" );
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document.write( "\"%28W%5B1%5DT%5B1%5D%29%2FJ%5B1%5D\"\"%22%22=%22%22\"\"%28W%5B2%5DT%5B2%5D%29%2FJ%5B2%5D\"\r\n" );
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document.write( "where\r\n" );
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document.write( "W1 = the number of workers in the first situation.\r\n" );
document.write( "T1 = the number of time units (days in this case) in the first situation.\r\n" );
document.write( "J1 = the number of jobs in the first situation.\r\n" );
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document.write( "W2 = the number of workers in the second situation.\r\n" );
document.write( "T2 = the number of time units (days in this case) in the second situation.\r\n" );
document.write( "J2 = the number of jobs in the second situation.\r\n" );
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document.write( "W1 =  3             W2 = the unknown quantity     \r\n" );
document.write( "T1 =  4             T2 = 6 \r\n" );
document.write( "J1 =  2             J2 = 12\r\n" );
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document.write( "\"%28W%5B1%5D%2AT%5B1%5D%29%2FJ%5B1%5D\"\"%22%22=%22%22\"\"%28W%5B2%5D%2AT%5B2%5D%29%2FJ%5B2%5D\"\r\n" );
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document.write( "\"%283%2A4%29%2F2\"\"%22%22=%22%22\"\"%28W%5B2%5D%2A6%29%2F12\"\r\n" );
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document.write( "\"12%2F2\"\"%22%22=%22%22\"\"%286%2AW%5B2%5D%29%2F12\"\r\n" );
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document.write( "\"12%2F2\" reduces to \"6\" and \"6%2AW%5B2%5D%2F12\" reduces to \"W%5B2%5D%2F2\"\r\n" );
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document.write( "\"6\"\"%22%22=%22%22\"\"%28W%5B2%5D%29%2F2\"\r\n" );
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document.write( "Multiply both sides by 2:\r\n" );
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document.write( "Answer = W2 = 12 workers.  (or 'people').\r\n" );
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document.write( "Edwin
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