Revision history of "2000 PMWC Problems/Problem I11"

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  • (cur | prev) 16:36, 20 April 2014TheMaskedMagician (talk | contribs). . (287 bytes) (+287). . (Created page with "==Problem== You have a pack of cards, among which are <math>20</math> red, <math>20</math> yellow, <math>20</math> green and <math>10</math> blue ones. How many cards would you n...")