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The total number of product A and B in a box is 20. The unit price of A and B is 0.2 and 0.4, respectively, and the total price of them is 5.6. What is the probability that someone randomly selects a product from the box and selects product A?
Give your answer as a fraction.
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· 相关考点
6.4.1 古典概率
6.4.1 古典概率
以上解析由 考满分老师提供。
