<PRE><B>Question 923508</B>
1 - 9 = 9 digits
10 - 99 = 90*2 = 180 digits
100 - 999 = 900*3 = 2700 digits
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There are more than {{{ 9 + 180/2 }}} pages, but there
are less than {{{ 9 + 180/2 + 2700/3 }}} pages
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I can say:
Let {{{ p }}} = number of pages in book
{{{ p = 9 + 180/2 + (( 825 - ( 9 + 180/2 ) )) / 3  }}}
{{{ p = 99 + ( 825 - 99 ) / 3 }}}
{{{ p = 99 + 726/3 }}}
{{{ p = 99 + 242 }}}
{{{ p = 341 }}}
There are 341 pages
I hope this logic is right -you might want
a 2nd opinion, too
 
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