document.write( "Question 175253: In numbering the pages of a book, a printer uses 522 digits. How many numbered pages does the book have? \n" ); document.write( "
Algebra.Com's Answer #130341 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! pages 1-9 are 9 pages that use 9 digits \n" ); document.write( "pages 10-99 are 90 pages that use 2*90 = 180 digits \n" ); document.write( "The whole book has 522 digits, so the number remaining is \n" ); document.write( "522 - (180 + 9) = 333 digits \n" ); document.write( "All the pages from 100-999 have 3 digits each \n" ); document.write( "333/3 = 111 pages used \n" ); document.write( "---------------------- \n" ); document.write( "9 pages use 9 digits \n" ); document.write( "90 pages use 180 digits \n" ); document.write( "111 pages use 333 digits \n" ); document.write( "The book has 9 + 90 + 111 = 210 pages \n" ); document.write( " |