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.
【答案】A
【思路】(1) total(1400) x
=588(參加人數) , 588 x women比例()=參加女人的比例 , 充份
(2)原題問surveyed werer women , 包含 engage 和 not engage , so we only can get engage women , 不充份