Beach Day by Rodger Bliss
April 2024
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Card Sharks

Let’s say you have two ordinary decks of playing cards, minus the jokers. So, you have a deck of 52 cards and another deck of 52 cards. You take them and you shuffle them up–mix them all up as best you can, one hundred four cards.

And then you divide them into two equal piles. So, you’ve got a pile of 52 on one side of the table, and a pile of 52 on the other side of the table. You have pile A and pile B.

What are the chances that the number of red cards in pile A equals the number of black cards in pile B? That’s part one of the question. And then part two of the question: how many cards would you have to look at to be certain of your answer?

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2 guesses to Card Sharks


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  • craig

    Red cards in one pile will always equal black cards in the other pile. To prove it you can count the cards in one pile and then you will know what the other pile has as well.

  • Dude

    Thank you for solving this riddle Craig. It is a brain bender for sure. Craig is the WINNER!!!