A gumball machine contains 9 red, 7 white, and 8 blue gumballs. The least number of gumballs a person must buy to be sure of getting four gumballs of the same color is
Answer Choices
A. 8
B. 9
C. 10
D. 12
E. 18
A gumball machine contains 9 red, 7 white, and 8 blue gumballs. The least number of gumballs a person must buy to be sure of getting four gumballs of the same color is
Answer Choices
A. 8
B. 9
C. 10
D. 12
E. 18