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The proportion of women among students enrolled in higher

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Re: Critical reasoning from OG10 [#permalink]

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New post 29 Jul 2011, 11:02
In this question, we are attacking the premise of the argument, is that ok?
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Re: Critical reasoning from OG10 [#permalink]

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New post 29 Jul 2011, 11:48
fluke wrote:
techyrajeev wrote:
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

I could not understand the reasoning behind the answer.


1959:
Total number of students enrolled=100
Women (20-21): 11
Men: 0
Obviously then, Women NOT(20-21): 89

Thus, proportion of women enrolled in 1959=100%

1981:
Total number of students enrolled=100
Women (20-21): 30
Men: 70
Obviously then, Women NOT(20-21): 0
Thus, proportion of women enrolled in 1981=30%

Thus, the proportion of woman in total students decreased from 1959 to 1981.

1959:
Total number of students enrolled=100
Women (20-21): 11
Men: 89
Obviously then, Women NOT(20-21): 0

Thus, proportion of women enrolled in 1959=11%

1981:
Total number of students enrolled=100
Women (20-21): 30
Men: 0
Obviously then, Women NOT(20-21): 70
Thus, proportion of women enrolled in 1981=100%

Thus, the proportion of woman in total students increased from 1959 to 1981.

Conclusion:
If we know what percent of men were enrolled in 1959 and 1981, we can exactly find the proportion of women among the students enrolled.

Ans: "D"


Although I agree that D is the best choice here. But I don't agree with the explanation that of total 100 students enrolled in the class, 11 women enrolled and 0 men enrolled. Who are these rest of the 89 people enrolled in the class? kids? animals?
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Re: Critical reasoning from OG10 [#permalink]

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New post 29 Jul 2011, 14:44
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sgupta0827 wrote:
fluke wrote:
techyrajeev wrote:
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

I could not understand the reasoning behind the answer.


1959:
Total number of students enrolled=100
Women (20-21): 11
Men: 0
Obviously then, Women NOT(20-21): 89

Thus, proportion of women enrolled in 1959=100%

1981:
Total number of students enrolled=100
Women (20-21): 30
Men: 70
Obviously then, Women NOT(20-21): 0
Thus, proportion of women enrolled in 1981=30%

Thus, the proportion of woman in total students decreased from 1959 to 1981.

1959:
Total number of students enrolled=100
Women (20-21): 11
Men: 89
Obviously then, Women NOT(20-21): 0

Thus, proportion of women enrolled in 1959=11%

1981:
Total number of students enrolled=100
Women (20-21): 30
Men: 0
Obviously then, Women NOT(20-21): 70
Thus, proportion of women enrolled in 1981=100%

Thus, the proportion of woman in total students increased from 1959 to 1981.

Conclusion:
If we know what percent of men were enrolled in 1959 and 1981, we can exactly find the proportion of women among the students enrolled.

Ans: "D"


Although I agree that D is the best choice here. But I don't agree with the explanation that of total 100 students enrolled in the class, 11 women enrolled and 0 men enrolled. Who are these rest of the 89 people enrolled in the class? kids? animals?


It's neither animals nor aliens. It's the number of women who are not between 20 and 21. You got to learn how to interpret a solution before criticizing it. See the text in red above.
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Re: Critical reasoning from OG10 [#permalink]

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New post 30 Jul 2011, 17:20
fluke wrote:
It's neither animals nor aliens. It's the number of women who are not between 20 and 21. You got to learn how to interpret a solution before criticizing it. See the text in red above.


I know man. I suck :cry: at it and need to learn. Since you insisted, I went over the explanation again, and I agree your illustration has no problem at all--I missed the NOT part. Must have been the long day the other day. I hope you are not considering me for your foe list :-D
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Re: Critical reasoning from OG10 [#permalink]

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New post 30 Jul 2011, 17:34
sgupta0827 wrote:
fluke wrote:
It's neither animals nor aliens. It's the number of women who are not between 20 and 21. You got to learn how to interpret a solution before criticizing it. See the text in red above.


I know man. I suck :cry: at it and need to learn. Since you insisted, I went over the explanation again, and I agree your illustration has no problem at all--I missed the NOT part. Must have been the long day the other day. I hope you are not considering me for your foe list :-D


ha ha!!! :lol:

No big deal, good friend!!! :cool

God knows how many times have I overlooked something and blamed the other party. :D

Thanks for giving it due consideration!!!
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Re: Critical reasoning from OG10 [#permalink]

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New post 30 Jul 2011, 17:59
Looks like a DS question to me......Too lazy to solve....so went with A first thinking that
(Even though, my hunch was D initially - come on - Will the question assume that class has only Men and Women ? So Men % will be sufficient )
Yes-D is correct ,logically as well :D
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Re: Critical reasoning from OG10 [#permalink]

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New post 31 Jul 2011, 21:11
techyrajeev wrote:
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
Does it matter even- nonetheless a lucrative answer :!:
(B) The percentage of women between twenty and twenty-five who graduated from college
We are not bothered about this group, if at all we would be interested in other than 20-21 enrolled group
(C) The percentage of women who, after attending college, entered highly paid professions
An out of scope answer
(D) The percentage of men between twenty and twenty-one who were enrolled in college
Sounds ok, lets keep it for now
(E) The percentage of men who graduated from high school
We are looking out for enrollment not graduated %ages- are not we :?:

I could not understand the reasoning behind the answer.


Initially I was looking for something like other than 20-21 year woman %ages (or total women enrolled %ages) but then could not find so by elimination we have D (fills the position for the rest of the group)
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The proportion of women among students enrolled in higher [#permalink]

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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
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Re: The proportion of women among students [#permalink]

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New post 21 Dec 2011, 23:29
stem talks about the proportion of WOMEN among STUDENTS,which includes MEN, so we couldn't say the women % is increasing or decreasing without comparing it with the relative % of men.

So I would go with D
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Re: The proportion of women among students [#permalink]

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New post 22 Dec 2011, 20:10
same, went with D
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Re: The proportion of women among students [#permalink]

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New post 26 Dec 2011, 07:30
We need to figure what is the %age of women in collage has gone up between 59 and 81
A,B,C,E provides no such information
So D is right even though it makes not much sense, but then we need to find a partial known fact
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The proportion of women among students enrolled in higher [#permalink]

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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??
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Re: CR from Gmat 10th Edition [#permalink]

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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]

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New post 26 Feb 2012, 09:05
Thanks Buddy...nice explanation....

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Re: CR from Gmat 10th Edition [#permalink]

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New post 26 Feb 2012, 09:26
Anytime bro :)
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Re: CR from Gmat 10th Edition [#permalink]

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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]

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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.
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The proportion of women among students enrolled in higher [#permalink]

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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

Can someone please explain the answer which is D.
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Re: RC :: Proportion of women among students [#permalink]

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New post 13 Mar 2012, 18:15
Straight D. We need to know the percentage of men.

http://gmatclub.com/forum/the-proportion-of-women-among-students-enrolled-in-higher-89772.html

Already discussed!!
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Re: The proportion of women among students enrolled in higher [#permalink]

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New post 02 Jul 2012, 17:33
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

ok....

I initially thought about A.
Now I realize why answer should be D.

The conclusion is

The proportion of women among the total students who enrolled in colleges has increased.
'Among the total students who enrolled in colleges' includes ONLY the enrolled students.

The total number doesn't include the one who didn't enroll in a college.

Thus, in order to see whether the proportion has increased, you only need to consider the ones who enrolled.

This rules out A.
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Re: The proportion of women among students enrolled in higher   [#permalink] 02 Jul 2012, 17:33

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