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题库 / Prep2007E1-DS-45
How many of the 42 people in a group are employed students?
(1) 29 of the 42 people are employed.
(2) 24 of the 42 people are students.
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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{Total} = {Students} + {Employed} - {Both} + {Neither}
我们并不了解｛Neither｝的学生数量，缺少条件无法计算
不应该错！
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