document.write( "Question 1129419: Need help please. This question makes no sense, and I can't find an example that explains what needs to be done to solve it.\r
\n" ); document.write( "\n" ); document.write( "n(U) = 100, n(A) = 24, n(B) = 60, and n(A ∩ B) = 10. Find n(A' ∩ B).\r
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Algebra.Com's Answer #745987 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "The set  (A' ∩ B)  is the set of those elements of B, that do not belong to A.\r\n" );
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document.write( "So  (A' ∩ B)  is simply the difference of two subsets  B  and  (A ∩ B) :\r\n" );
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document.write( "    (A' ∩ B) = B \ (A ∩ B),      (*)\r\n" );
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document.write( "where the symbol  \" \ \"  symbolizes subtraction of subsets.\r\n" );
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document.write( "From (*),  n(A' ∩ B) = n(B) - n(A ∩ B) = 60 - 10 = 50.    ANSWER\r\n" );
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