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There are 40 marbles in a jar. If $$\frac{1}{5}$$ of the marbles are blue, $$\frac{1}{4}$$ of the remaining marbles are red, and 10 marbles are green. If a marble is selected at random, then what is the probability that the marble will not be blue, red, or green?_____
14,40 显示答案
以上解析由 考满分老师提供。
