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Problems dealing with various probabilities, be it coin tossing or game winning.
A box contains 900 cards numbered from 100 to 999. Cards are drawn randomly, one at a time, without replacement, and the sum of their digits is recorded. What is the minimum number of cards that must be drawn to guarantee that at least three of these sums are the same?
(No Solution Yet, 2 Comments) Submitted on 2025-06-02 by Danish Ahmed Khan   
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