A bag contains 3 red, 4 white, and 5 blue marbles. Jason begins removing marbles

游客2025-02-24 24

问题 A bag contains 3 red, 4 white, and 5 blue marbles. Jason begins removing marbles from the bag at random, one at a time. What is the least number of marbles he must remove to be sure that he has at least one of each color?

选项 A、3
B、6
C、8
D、10
E、12

答案 D

解析

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