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  3. Questions are based on the following data. In region P, the expense in the category Other was what fraction of the total of th

Questions are based on the following data. In region P, the expense in the category Other was what fraction of the total of th

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问题 Questions are based on the following data.

In region P, the expense in the category Other was what fraction of the total of the expense in the three non-housing categories?
选项 A、1/10
B、1/6
C、1/5
D、1/4
E、1/3
答案D
解析 对于同一个region，应采取横向比较。因为总数都是一样的，所以比较比例即可。Other为10％，non-housing包括Transportation：16％，Groceries：14％，0ther：10％。所以占比为10/(16+14+101=1/4，故答案为D。此处参与计算的百分比对应的总量都是P的总支出，所以不需要带着具体的钱数计算。
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