document.write( "Question 505011: If 4 men can do the job in 9 days,how many men were needed to do the job in 12 days? \n" ); document.write( "
Algebra.Com's Answer #339757 by Edwin McCravy(20081)\"\" \"About 
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If 4 men can do the job in 9 days,how many men were needed to do the job in 12 days?
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document.write( "Since 4 men can do the job in 9 days, then it would take 1 man 4 times as long or 36 days.\r\n" );
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document.write( "12 days is 3 times as fast as the 36 days it would take 1 man, so it will take\r\n" );
document.write( "3 men.\r\n" );
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document.write( "Or you can use the formula\r\n" );
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document.write( "W1*T1     W2*T2 \r\n" );
document.write( "-----  =  -----   \r\n" );
document.write( " J1        J2\r\n" );
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document.write( "where \r\n" );
document.write( "W1 = number of workers in the first ssituation = 4\r\n" );
document.write( "T1 = number of days in the first situation = 9\r\n" );
document.write( "J1 = number of jobs in the first situation = 1\r\n" );
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document.write( "W2 = number of workers in the second ssituation = ?\r\n" );
document.write( "T2 = number of days in the second situation = 12\r\n" );
document.write( "J2 = number of jobs in the second situation = 1\r\n" );
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document.write( "4*9   W2*12\r\n" );
document.write( "--- = -----\r\n" );
document.write( " 1      1\r\n" );
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document.write( " 36 = 12W2\r\n" );
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document.write( "  3 = W2 \r\n" );
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document.write( "Edwin
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