Tuesday
September 2, 2014

Homework Help: math

Posted by M.A. on Thursday, August 20, 2009 at 9:21am.

How many times does the number "9" appear in the page numbers of a 100-page newspaper? Choose from
the possible answers below.

( )9

( )10

( )15

( )19

( )20

( )21

Unless this is a trick question that I have missed, there should be 11 times that the
number "9" appears:
9, 19, 29, 39, 49, 59, 69, 79, 89, and twice in 99 = 11 "9's"

"11" is not a possible choice.
Is there something special about the numbered pages of a newspaper that would affect this answer?
Or are they considering that the "99"
has only one number 9 since the first
9 would represent 90?

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