document.write( "Question 953505: Crystal has a percentile rank of 20 in hre graduating class, which consists of 400 students. What is her rank in class? \n" ); document.write( "
Algebra.Com's Answer #582310 by jim_thompson5910(35256)\"\" \"About 
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20th percentile means her score is higher than 20% of the population\r
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\n" ); document.write( "\n" ); document.write( "20% of 400 = 0.20*400 = 80\r
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\n" ); document.write( "\n" ); document.write( "she scored better than 80 people, which means 400-80-1 = 319 people scored better than her.\r
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\n" ); document.write( "\n" ); document.write( "Her rank is 320\r
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