AMC 8 2008 Problem 10
AMC8 2008 年第 10 题
统计与数据图表★★☆☆☆
The average age of the 6 people in Room A is 40. The average age of the 4 people in Room B is 25. If the two groups are combined, what is the average age of all the people?
房间里 6 个人的平均年龄是 40 岁。B 房间里 4 个人的平均年龄是 25 岁。如果把这两组人合起来，那么所有人的平均年龄是多少？
- A.32.5
- B.33
- C.33.5
- D.34
- E.35
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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