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The proportion of women among students enrolled in higher

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The proportion of women among students enrolled in higher [#permalink] New post 26 Feb 2012, 07:21
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B
C
D
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82% (02:13) correct 18% (00:56) wrong based on 17 sessions
155. The proportion of women among students enrolled in higher education programs has increased over the
past decades. This is partly shown by the fact that in 1959, only 11 percent of the women between twenty and
twenty-one were enrolled in college, while in 1981, 30 percent of the women between twenty and twenty-one
were enrolled in college.

To evaluate the argument above, it would be most useful to compare 1959 and 1981 with regard to which of
the following characteristics?

(A) The percentage of women between twenty and twenty-one who were not enrolled in college
(B) The percentage of women between twenty and twenty-five who graduated from college
(C) The percentage of women who, after attending college, entered highly paid professions
(D) The percentage of men between twenty and twenty-one who were enrolled in college
(E) The percentage of men who graduated from high school

Confused between A and D but marked A to my fate it is incorrect answer...can anyone explain what's wrong with A??
[Reveal] Spoiler: OA

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Re: CR from Gmat 10th Edition [#permalink] New post 26 Feb 2012, 08:30
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Hey Kotela,

IMO,

Choice 'A' - Doesn't add any additional information. The percentage of women between twenty and twenty-one who were not enrolled in college can be calculated from the Q stem.
11% of women enrolled implies 89% of women were not enrolled
and 30% of women enrolled implies 70% of women were not enrolled.

Also, notice in the Q stem "The proportion of women among students enrolled", 'among students' suggests we need data pertaining to both the genders.

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Re: CR from Gmat 10th Edition [#permalink] New post 26 Feb 2012, 09:05
Thanks Buddy...nice explanation....

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Re: CR from Gmat 10th Edition [#permalink] New post 26 Feb 2012, 09:26
Anytime bro :)
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Re: CR from Gmat 10th Edition [#permalink] New post 27 Feb 2012, 00:36
kotela wrote:
155. The proportion of women among students enrolled in higher education programs has increased over the past decades. This is partly shown by the fact that in 1959, only 11 percent of the women between twenty and
twenty-one were enrolled in college, while in 1981, 30 percent of the women between twenty and twenty-one
were enrolled in college.

To evaluate the argument above, it would be most useful to compare 1959 and 1981 with regard to which of
the following characteristics?

(A) The percentage of women between twenty and twenty-one who were not enrolled in college
(B) The percentage of women between twenty and twenty-five who graduated from college
(C) The percentage of women who, after attending college, entered highly paid professions
(D) The percentage of men between twenty and twenty-one who were enrolled in college
(E) The percentage of men who graduated from high school

Confused between A and D but marked A to my fate it is incorrect answer...can anyone explain what's wrong with A??


Hi kotela, choice A is the already existing choices because you just use 100% - the percentage of women between twenty and twenty-on who enrolled in college. So, this cannot help you evaluate anything.

In choice D, just image the pie include women and men. If the men are eaten partly (women part did not change), the overall volume of pie will decrease. Correspondingly, the percentage of women part in new smaller pie increase although the volume of women part did not increase at all. That why choice D is the correct one.
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Re: CR from Gmat 10th Edition [#permalink] New post 28 Feb 2012, 21:47
kotela wrote:
155. The proportion of women among students enrolled in higher education programs has increased over the
past decades. This is partly shown by the fact that in 1959, only 11 percent of the women between twenty and
twenty-one were enrolled in college, while in 1981, 30 percent of the women between twenty and twenty-one
were enrolled in college.

To evaluate the argument above, it would be most useful to compare 1959 and 1981 with regard to which of
the following characteristics?

(A) The percentage of women between twenty and twenty-one who were not enrolled in college
(B) The percentage of women between twenty and twenty-five who graduated from college
(C) The percentage of women who, after attending college, entered highly paid professions
(D) The percentage of men between twenty and twenty-one who were enrolled in college
(E) The percentage of men who graduated from high school

Confused between A and D but marked A to my fate it is incorrect answer...can anyone explain what's wrong with A??


Info asked in A could be found out directly from stimulus. percent of women not enrolled in college in 1959 is 100-11 = 89 and in 1981 the figure is 100-30=70. so we already know this information from stimulus.

As far as D is concerned it helps in providing an information about proportion of women in college.

proportion of women in college = no of women / (no of women + no of men )

no of men enrolled in college could be determined if we know percentage of men enrolled in college. hence D provides this info.
Re: CR from Gmat 10th Edition   [#permalink] 28 Feb 2012, 21:47
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