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题库 / Prep2007E1-DS-165
Of the 1,400 college teachers surveyed, 42 percent said that they considered engaging in research an essential goal. How many of the college teachers surveyed were women?
(1) In the survey, 36 percent of the men and 50 percent of the women said that they considered engaging in research an essential goal.
(2) In the survey, 288 men said that they considered engaging in research an essential goal.
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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（2）只能得出considered engaging in research an essential goal的女士人数，不能得出参与调查的女士人数
m+w=1400m+w=1400 and 1400∗0.42=0.36∗m+0.5∗w1400∗0.42=0.36∗m+0.5∗w.
(2) In the survey 288 men said that they consider engaging in research activity an essential goal"
From this we can calculate only that 1400∗0.42−288=3001400∗0.42−288=300 women consider engaging in research activity an essential goal. No other info. Not sufficient.
64%M+50%W=1500*58%
64%M+50%W=1500*58%
(1) 36%M+42W=1400*42%
36%M+50%W=1500*42%
64%M+50%W=1500*58%