document.write( "Question 1189395: Please help me solve this problem!!\r
\n" ); document.write( "\n" ); document.write( ": A book dealer has books in store of which 1/5 were hardcover books . the dealer sold 2/3 of the books , including 3/4 of the hardcover books . what fraction of the unsold books were hardcover books??
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Algebra.Com's Answer #820767 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "Tutor octo-pie didn't answer the question that was asked....

\n" ); document.write( "The other tutor has the right answer, but it takes a long time for the reader to get through his treatment of the problem.

\n" ); document.write( "x = original number of books
\n" ); document.write( "(1/5)x = original number of hardcover books
\n" ); document.write( "(4/5)x = original number of other books
\n" ); document.write( "(3/4)*(1/5)x = (3/20)x = number of hardcover books sold
\n" ); document.write( "(1/4)*(1/5)x = (1/20)x = number of hardcover books unsold
\n" ); document.write( "(2/3)x = number of books sold
\n" ); document.write( "(1/3)x = number of books unsold

\n" ); document.write( "The fraction of unsold books that are hardcover is (number of unsold hardcover) divided by (total number unsold)

\n" ); document.write( "\"%28%281%2F20%29x%29%2F%28%281%2F3%29x%29+=+%281%2F20%29%2F%281%2F3%29+=+3%2F20\"

\n" ); document.write( "ANSWER: 3/20 of the unsold books were hardcover

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