A gumball machine has a random mixture of gumballs of C different colors.
A woman has K children.
What is the minimum number of gumballs she must buy from the machine to guarantee that she has at least one set of K gumballs all of the same color? (So she can give the same color gumball to each child.) |
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SOLUTION |

| Problem 1 | Problem 2 | Problem 3 | Problem 4 | Problem 5 |

| Problem 6 | Problem 7 | Problem 8 | Problem 9 | Problem 10 |