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The average (arithmetic mean) of the 100 numbers in list S is 5.0. The average of the 20 numbers in list T is m. If the numbers in both lists are combined into one list, the average of the 120 numbers in the combined list is m-3. What is the value of m?
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· 相关考点
5.2.1 平均值
5.2.1 平均值
以上解析由 考满分老师提供。
