作者moll (坚持)
看板GMAT
标题Re: [计量] PP DS1 64
时间Thu Aug 7 18:34:41 2008
※ 引述《piapiapia (piapiapia)》之铭言：
: 64. 5320-!-item-!-187;#058&004563
: Are at least 10 percent of the people in Country X who are 65 years old or
: older employed?
: (1) In Country X, 11.3 percent of the population is 65 years old or older.
: (2) In Country X, of the population 65 years old or older, 20 percent
: of the men and 10 percent of the women are employed.
: 答案是B
: A我能够排除，想请问B应如何思考?
: 谢谢!
设M为65岁以上男性 W为65岁以上女性
(2) 0.2M + 0.1W 思考： 会不会大於 (M+W)0.1
整理一下 0.1(2M+W) 得到 2M+W 一定大於 M+W
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1F：推 piapiapia:懂了 谢谢! 08/07 18:55