georgeonnatreev889 georgeonnatreev889

26-07-2018
Mathematics

contestada

How many cards from a standard deck (13 ranks in each of 4 suits) must be dealt to guarantee: (a) at least three of the same rank? (b) at least three 6's? (c) at least three of the same suit? (d) at least 3 hearts?

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konrad509 konrad509

26-07-2018

a) 27

b) 51

c) 9

d) 42

.....................................

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