3. None at all.
JDEN
Judging that the cards are either: .01, .11, .15 inches in length I got that there are either:
10285.714285714286 cards
9350.64935064935 cards
6857.14285714 cards
God help me with this and tell me this isn't a trick question.
I believe that you mean height, not lenth. Those would be awfully tiny cards if they were only a tenth of an inch long.