Step 1. Since over half of the cards are odd or 28 cards (counting the 8 face cards of Jacks and Kings as an odd number plus 20 cards (4 sets of the cards 1, 3, 5, 7, 9) then
(ANSWER if you count face cards as either odd or even)
Step 2. If you don't card the face cards as odd or even then you have 20 cards.
(ANSWER if you don't count the face cards as either odd or even)
I hope the above steps were helpful.
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