xy13-1-13

Q13:

In the United States, of the people who moved from one state to another when they retired, the percentage who retired to Florida has decreased by three percentage points over the past ten years.  Since many local businesses in Florida cater to retirees, this decline is likely to have a noticeably negative economic effect on these businesses.

Which of the following, if true, most seriously weakens the argument?

1. Florida attracts more people who move from one state to another when they retire than does any other state.

2. The number of people who move out of Florida to accept employment in other states has increased over the past ten years.

3. There are far more local businesses in Florida that cater to tourists than there are local businesses that cater to retirees.

4. The total number of people who retired and moved to another state for their retirement has increased significantly over the past ten years.

5. The number of people who left Florida when they retired to live in another state was greater last year than it was ten years ago.

答案是d

完全看不懂怎样可以weaken

谢谢：）

这是gmat逻辑中经常出现的考点哈：即比例和数据的关系。

相对数不等于绝对数！！

题中，虽然比例下降，但如果总数上升的幅度超过比例下降的幅度，那么从绝对数上讲最终还是上升的哈

明白了，谢谢jenny,我会记住这种题的