document.write( "Question 154423: School X has 180 more pupils than School Y. If 60 pupils transferred from School Y to School X, there will be 4 times as many pupils in School X as School Y. How many pupils are there in school x at first?\r
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document.write( "ps. do not use algebra but if there is no choice, its okay. \n" );
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Algebra.Com's Answer #113708 by scott8148(6628) You can put this solution on YOUR website! X has 180 more than Y\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "when 60 leave Y, X will have 240 more than Y (because Y got smaller by 60)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "when 60 go to X, X will have 300 more than Y (because X got bigger by 60)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "X has 300 more than Y and is 4 times as large (the same size PLUS 3 times more)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3 times is the 300 __ one times is 100 __ so Y is 100 after losing 60\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Y is initially 160 __ X has 180 more, so X is initially 340 \n" ); document.write( " |