Puzzle of the day: 131
In a deck of cards, what is the least amount of cards you must take to be guaranteed at least one four-of-a-kind?
In a deck of cards, what is the least amount of cards you must take to be guaranteed at least one four-of-a-kind?
Answer: 40 cards Solution: if you take 39 cards, you may end up with 3 cards of each type. 40th card will ensure you have one 4 of a kind
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