document.write( "Question 1205771: a book shelf contain x book. When 4/5 of the book are removed,
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Algebra.Com's Answer #842793 by ikleyn(52908) $\"\"$ $\"About$

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\n" ); document.write( "a book shelf contain x book. When 4/5 of the book are removed,
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document.write( "From the problem, the remaining 25 books is 1/5 of x.\r\n" );
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document.write( "Hence, x is 5 times 25, or 125.\r\n" );
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document.write( "ANSWER.  x= 125.\r\n" );
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