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If the average (arithmetic mean) of 10, 20, 30, 40, and x is 60, what is the val
If the average (arithmetic mean) of 10, 20, 30, 40, and x is 60, what is the val
游客
2024-01-12
44
管理
问题
If the average (arithmetic mean) of 10, 20, 30, 40, and x is 60, what is the value of x?
选项
A、50
B、60
C、100
D、150
E、200
答案
E
解析
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