【GMAT PRE PS&DS数学解析】GMAT-PREP-DS1 第10题

【GMAT PRE PS&DS数学解析】GMAT-PREP-DS1 第10题

发布时间:2015-08-07 03:21:06字体: 文章来源:

 【GMAT PRE PS&DS数学解析】GMAT-PREP-DS1  第10题

Of the 800 students at a certain college, 250 students live oncampus and are more than 20 years old. How many of the 800 students live on campusand are 20 years old or less?
 
(1)  640 students at thecollege are more than 20 years old.
(2)  60 students at thecollege are 20 years old or less and live off campus.
 
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. BOTHstatement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D.EACHstatement ALONE is sufficient.
E. Statements(1) and (2) TOGETHER are NOT sufficient


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