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题库 / Prep2007E1-DS-23
At least 100 students at a certain high school study Japanese. If 4 percent of the students at the school who study French also study Japanese, do more students at the school study French than Japanese?
(1) 16 students at the school study both French and Japanese.
(2) 10 percent of the students at the school who study Japanese also study French.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
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题目没看清，条件是至少100人学日语，不是有100人：
条件一：设学日语的n个，n>100，学法语的是400，学日语的最少100，不知大小；法语的大小与日语无关
条件二：设n个学日语的，n>100，0.1n学both，学法语的就是2.5n，法语的大小与日语有关，条件二充分
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