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2000 PMWC Problems/Problem I11

Revision as of 17:36, 20 April 2014 by TheMaskedMagician (talk | contribs) (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...")
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Problem

You have a pack of cards, among which are $20$ red, $20$ yellow, $20$ green and $10$ blue ones. How many cards would you need to draw out to ensure that you have $12$ cards of the same colour?

Solution

See Also

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