document.write( "Question 978652: The ratio of the number if boys and girls in a school is 3: 2. 20% of the\r
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Algebra.Com's Answer #600037 by Edwin McCravy(20056)\"\" \"About 
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The ratio of the number if boys and girls in a school is 3:2
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document.write( "To change a ratio to two fractions, put each number, 3 and 2, over the sum of\r\n" );
document.write( "the two numbers 3+2, or 5. So the two fractions are \"3%2F5\" and \"2%2F5\".\r\n" );
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document.write( "That means \"3%2F5\"ths of the students are boys and \"2%2F5\"ths of the students are\r\n" );
document.write( "girls.\r\n" );
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document.write( "Change those to percents:\r\n" );
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document.write( "\"3%2F5=60%2F100=%2260%25%22\", \"2%2F5=40%2F100=%2240%25%22\"\r\n" );
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document.write( "So 60% of the students are boys and 40% of the students are girls.\r\n" );
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\n" ); document.write( "20% of the boys and 25% of the girls are scholarship holders
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document.write( "That means 20% of 60% are boy scholarship holders and 25% of 40% are girl scholarship holders.\r\n" );
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document.write( "Therefore:\r\n" );
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document.write( "20% of 60% = (0.20)(0.60) = 0.12 = 12% of the students are boy scholarship\r\n" );
document.write( "holders, \r\n" );
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document.write( "and\r\n" );
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document.write( "25% of 40% = (0.25)(0.40) = 0.10 = 10% of the students are girl scholarship\r\n" );
document.write( "holders. \r\n" );
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document.write( "That means that 12% + 10% = 22% of the students are scholarship holders.\r\n" );
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document.write( "Therefore 100% - 22% = 78% of the students are not scholarship holders.\r\n" );
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document.write( "Edwin
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