Question 1132049
She will use up:
numbers with 3.    number of threes
----------------   -------------------
3 - - - - - - - - - - - -  1
13 - - - - - - - - - - - - 1
23 - - - - - - - - - - - - 1
30 - 33 - 39 - - - - - - 11
43 - - - - - - -  - - - - - 1
53, 63, 73, 83, 93 - - - 5
103, 113, 123, - - - - - - 3
130, 131, 132 - - - - - - 3
133 - - - - - - - - - - - - 2
134 - 139 - - - - - - - - 6
143, 153, 163, - - - - - - 3
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total of 3's used = 37
She can number pages up to page 163