[求助]请教一道逻辑题—[新东方蓝皮中册]—[综合练习298页]—第二题

cjmizi

请教一道逻辑题—[新东方蓝皮中册]—[综合练习298页]—第二题

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 bussiness in Florida cater to retirees, this decline is likely to have a noticeably negative economic effect on these bussiness.

which ot the following, if true, most seriously weakens the argument?

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

首先想问一下 “ who retired to Florida” 是指别的州的人退休了之后去 Florida吗？
麻烦给说一下其中的逻辑链 非常感谢！！

cherry6177

题目里面说的是：the percentage who retired to Florida has decreased;

答案里面说的是：The total number of people who retired and moved to another state has increased;

the percentage who retired to Florida = The number of retired to Florida /The total number of people who retired and moved to another state;

So, The total number of people who retired and moved to another state增加----〉the percentage who retired to Florida 降低;

So,以the percentage who retired to Florida has decreased 不代表 The number of retired to Florida 减少.