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题库 / Prep2007E1-DS-105
What is the number of members of Club X who are at least 35 years of age?
(1) Exactly ~$\frac{3}{4}$~ of the members of Club X are under 35 years of age.
(2) The 64 women in Club X constitute 40 percent of the club's membership.
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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低于35岁和至少35岁时互斥关系吗？？？
是啊
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(1) 1/4 of the members are at least 35 years of age. But we don't how many members there are in club X. Not sufficient.
(2) members of the club X is 64/0.4 = 160.
(1)+(2) Sufficient.