lsat-6-2-5

prettymay

5. The museum's night security guard-maintains that the thieves who stole the portrait did not enter the museum at any point at or above ground level. Therefore, the thieves must have gained access to the museum from below ground level.

The flawed pattern of reasoning in the argument above is most similar to that in which one of the following?

(A) The rules stipulate the participants in the contest be judged on both form and accuracy. The eventual winner was judged highest in neither category , so there must be a third criterion that judges were free to invoke.
(B) The store's competitors claim that the store in selling off the shirts at those prices, neither made any profit nor broke even. Consequently, the store's customers must have been able to buy shirts there at less than the store's cost.
(C) If the census is to be believed, the percentage of men who are married is higher than the percentage of women who are married. Thus, the census must show a higher number of men than of women overall.
(D) The product label establishes that this insecticide is safe for both humans and pet. Therefore, the insecticide must also be safe for such wild mammals as deer and rabbits.
(E) As had generally been expected, not all questionnaires were sent in by the official deadline. It follows that plans must have been made for the processing of questionnaires received late.

看以前人的解释说是B 排除他因不一定对

但是A不也是排除他因吗? 不是 前两种就是第3种咯.

为什么选B不选A列

dphxmg

The conclusion is a judgment as to a particular state of affairs. The premise is based on a particluar person or group of persons' belief.

ssssss

The museum's night security guard-maintains that the thieves who stole the portrait did not enter the museum at any point at or above ground level. Therefore, the thieves must have gained access to the museum from below ground level.

In here, the question showed that the argument is flawed. So, first of all you have to find out and identify what is the flaw of this argument. Then, find the answer that has exactly the same flaw as stimulus.

 

The logical flow in this argument is that “because thieves did not enter the museum at any point at or above ground level, they must have gained access to the museum from below ground level”. “MUST HAVE” is too strong that overlook that there might be other ways thieves can get in to museum.

The flawed pattern of reasoning in the argument above is most similar to that in which one of the following?

(A) The rules stipulate the participants in the contest be judged on both form and accuracy. The eventual winner was judged highest in neither category , so there must be a third criterion that judges were free to invoke.

(B) The store's competitors claim that the store in selling off the shirts at those prices, neither made any profit nor broke even. Consequently, the store's customers must have been able to buy shirts there at less than the store's cost.

This answer has exactly the same logical flaw as the argument. What if the store gets money from manufacture which allow them to sell their product cheaper than broke even price.

(C) If the census is to be believed, the percentage of men who are married is higher than the percentage of women who are married. Thus, the census must show a higher number of men than of women overall.

(D) The product label establishes that this insecticide is safe for both humans and pet. Therefore, the insecticide must also be safe for such wild mammals as deer and rabbits.

(E) As had generally been expected, not all questionnaires were sent in by the official deadline. It follows that plans must have been made for the processing of questionnaires received late.

jeffreyjin

好解释，谢谢了