document.write( "Question 1177678: In a city three newspapers
\n" );
document.write( "X , Y , Z
\n" );
document.write( "are published ,
\n" );
document.write( "40%
\n" );
document.write( "of the people of the city read
\n" );
document.write( "X , 50%
\n" );
document.write( "read
\n" );
document.write( "Y , 30%
\n" );
document.write( "read
\n" );
document.write( "Z , 20%
\n" );
document.write( "read both
\n" );
document.write( "X
\n" );
document.write( "and
\n" );
document.write( "Y ,15%
\n" );
document.write( "read both
\n" );
document.write( "X
\n" );
document.write( "and
\n" );
document.write( "Z
\n" );
document.write( "and
\n" );
document.write( "24%
\n" );
document.write( "read all the three papers. Calculate the percentage of people who do not read any of
\n" );
document.write( "the three papers. [ \n" );
document.write( "
Algebra.Com's Answer #806782 by ikleyn(52898) You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It could be a nice, beautiful first class problem, BUT, UNFORTUNATELY,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "it describes, BY MISTAKE, a situation which NEVER MAY HAPPEN in real life,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "because the intersection of the three sets XYZ (24%) is, according to the condition,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "GREATER than the intersection of two subsets XY (20%) and XZ (15%).\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, in this form, as presented in the post, the problem is good for re-cycling, only.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Unfortunately, the person who composed this problem, has lack of knowledge in elementary Math.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "//////////\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "When you complete reading my post, do not forget to submit your \"THANKS\" to me for my teaching.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "At least, do not post your anathema to me for opening your eyes, \n" ); document.write( "as some visitors of this forum do.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |