AMC 10 Step by Step
2020 AMC 10BProblem 19P16-20~6 minPrint

In a certain card game, a player is dealt a hand of 1010 cards from a deck of 5252 distinct cards. The number of distinct (unordered) hands that can be dealt to the player can be written as 158A00A4AA0158A00A4AA0 . What is the digit AA ?

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Problem © Mathematical Association of America (MAA), American Mathematics Competitions. Reproduced for non-commercial educational use. Solution and commentary are original to this site.