document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=198240>Question 198240</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780495553458/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> On the first day of school, the percentage of boys in a particular class is 60%. During the school year, six girls move away, and are replaced in the class by six boys; this makes the class roster 75% boys. Find the number of boys and girls in the class on the first day of school. </SPAN>\n" );
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document.write( "let the total numbe of students in a  class be 100<BR>\n" );
document.write( "60%of the class=60/100*100=60<BR>\n" );
document.write( "boys in the class=60<BR>\n" );
document.write( "total students in the class=100<BR>\n" );
document.write( "girls in the class=100-60=40<BR>\n" );
document.write( "later 6 girls are move away<BR>\n" );
document.write( "now toal number of students=100-6=94<BR>\n" );
document.write( "and againg 6 girls are replace by 6 boys <BR>\n" );
document.write( "now total number of students in the class=94+6=100<BR>\n" );
document.write( "now 75% of the class=75/100*100=75<BR>\n" );
document.write( "now number of boys in a class =75 <BR>\n" );
document.write( "number of girls in the class=100-75=25<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );