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试题详情
From May to July, approximately what percent of the increase in the total number of readers of Magazine X was the increase in the number of readers in the 31^40 age group?
A、3%
B、15%
C、18%
D、36%
E、87%
答案：D
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Graphic Analysis
老师这题我算出来是42%，请问怎么算出来是D的？
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Graphic Analysis
请问这题不是（26000x24.2%-22000x21.2%）/（26000-22000）=42%吗？
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