document.write( "Question 773233: If it takes 15 people 8 hours to clean a restaurant,
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Algebra.Com's Answer #471376 by Edwin McCravy(20060) $\"\"$ $\"About$

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If it takes 15 people 8 hours to clean a restaurant,
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document.write( "First way:\r\n" );
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document.write( "It takes 15 people 8 hours. So it would take 5 people 24 hours.\r\n" );
document.write( "(That's because 1/3 as many, or 5 people take 3 times as long, or 18 hours.) \r\n" );
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document.write( "It takes 20 people 6 hours.  (Because 4 times as many people do it\r\n" );
document.write( "in 1/4th the time.\r\n" );
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document.write( "Answer: 6.\r\n" );
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document.write( "Second way:\r\n" );
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document.write( "Or you can work it:\r\n" );
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document.write( "(people the first time)(hours the first time) = \r\n" );
document.write( "   (people the second time)(hours the second time)\r\n" );
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document.write( "15×8 = 20×N\r\n" );
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document.write( "   6 = N\r\n" );
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document.write( "Edwin

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