Data Sufficiency
试题详情
题目：
A small school has three foreign language classes, one in French, one in Spanish, and one in German. How many of the 34 students enrolled in the Spanish class are also enrolled in the French class?
- There are 27 students enrolled in the French class, and 49 students enrolled in either the French class, the Spanish class, or both of these classes.
- One-half of the students enrolled in the Spanish class are enrolled in more than one foreign language class.
选项:
A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C、BOTH statements (1) and (2) TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient.
E、Statements (1) and (2) TOGETHER are not sufficient.
答案:
A
提问：
已知T(F∪S∪G)=T(F)+T(S)+T(G)-T(F∩S)-T(F∩G)-T(S∩G)+T(F∩S∩G)=34, (1): T(F)=27, T(F)+T(S)+T(F∪S)=49,根据这两个条件是如何判断出T(F∩S)是多少的
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