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To develop more accurate population forecasts, demographers

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To develop more accurate population forecasts, demographers [#permalink] New post 28 Oct 2007, 18:05
00:00
A
B
C
D
E

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Question Stats:

58% (01:36) correct 41% (00:37) wrong based on 29 sessions
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

OA is E. IMO it should be D. What do you think?
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Re: SC: To develop more accurate population forecasts [#permalink] New post 28 Oct 2007, 19:03
english_august wrote:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

OA is E. IMO it should be D. What do you think?


E is better only because of parallism: social and economical. Otherwise I prefer A.
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Re: SC: To develop more accurate population forecasts [#permalink] New post 28 Oct 2007, 19:25
GMAT TIGER wrote:
english_august wrote:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

OA is E. IMO it should be D. What do you think?


E is better only because of parallism: social and economical. Otherwise I prefer A.


If you are going for ||lism than isn't C a better choice?
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Re: SC: To develop more accurate population forecasts [#permalink] New post 28 Oct 2007, 20:41
english_august wrote:
GMAT TIGER wrote:
english_august wrote:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

OA is E. IMO it should be D. What do you think?


E is better only because of parallism: social and economical. Otherwise I prefer A.


If you are going for ||lism than isn't C a better choice?


i guess its same but "they do" is not required or unnecessary.
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Re: SC: To develop more accurate population forecasts [#permalink] New post 28 Oct 2007, 22:23
english_august wrote:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

OA is E. IMO it should be D. What do you think?


D

AB: would establishes meaning better elim these two choices.

C: economical is inappropriate here. means inexpensive
E: same economical is inappropriate here. means inexpensive

please check out this link http://www.english-test.net/forum/ftopic4710.html
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Re: SC: To develop more accurate population forecasts [#permalink] New post 01 Jun 2010, 23:22
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OA is D.

Q41 - OG12:
Verb form; Logical predication
Th is sentence explains a hypothetical situation and therefore calls for a conditional—or contraryto- fact—construction, because in order to more accurately predict population, demographers would have to know more than they presently
know. A present-tense verb is required to describe the current state of demographers’ knowledge, and the comparison made by the sentence must be
between current and conditional knowledge, not between knowledge and time of knowing (now). A Wrong comparison—between knowledge and time (now); conditional verb is needed. B Conditional verb is needed; economical is the
wrong adjective. C Economical is the wrong adjective. D Correct. Conditional knowledge, indicated by would have to know, is correctly compared
to current knowledge. E Wrong comparison—between what demographers need to know and now.

The correct answer is D.
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Re: SC: To develop more accurate population forecasts [#permalink] New post 02 Jun 2010, 00:48
yap - a little typo

the OA here is D
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Re: SC: To develop more accurate population forecasts [#permalink] New post 07 Jun 2010, 05:34
I will choose D

social and economic --> economic means related to finance ---> intended meaning

economical -thrifty ---> changes the meaning of the sentence --> making the fertility sound economical

A is clear OUT

D is left.
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Re: SC: To develop more accurate population forecasts [#permalink] New post 28 Aug 2010, 04:47
According to Manhattan SC, economical means efficient, and that is what we want to say here, so Im with C.
Please clarify.
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Re: SC: To develop more accurate population forecasts [#permalink] New post 28 Aug 2010, 10:36
Hey Noburu,

Just to weigh in real quickly, we don't want "efficient" here. We want "economic", meaning "related to the economy" (economy meaning "wealth and resources" of a region or country). We want to know how economic (money-related) factors relate to fertility, etc.

-t
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Re: SC: To develop more accurate population forecasts [#permalink] New post 02 Sep 2010, 10:08
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Hey All,

I got asked about this privately, but I think the same question was asked by mymisc as well. The question is, do we need the "would" here, and why? The issue is that this sentence is a hypothetical/conditional:

To develop more accurate population forecasts

We could reword this as "If we wanted more accurate forecasts, demographers..."

In a conditional construction, we need the "would". Look at how it would work in a NON-conditional:

To develop accurate population forecasts, demographers have to know a great deal more...

See how, in that example, without the "more," we're just talking about a fact (how forecasts are developed accurately)? But with the conditional, we need the complete conditional construction, with "would."

Let me know if you have any follow-up questions!

-t
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Re: SC: To develop more accurate population forecasts [#permalink] New post 04 Sep 2010, 11:29
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

E had written wrong it is not "economical". In the original exam,gmatprep 2, it is written "economic".

so i picked up E why it is not true.

I chose E can anyone explain it pls?

To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economic

it is the right question.
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Re: SC: To develop more accurate population forecasts [#permalink] New post 21 Nov 2010, 05:48
TommyWallach wrote:
Hey All,

I got asked about this privately, but I think the same question was asked by mymisc as well. The question is, do we need the "would" here, and why? The issue is that this sentence is a hypothetical/conditional:

To develop more accurate population forecasts

We could reword this as "If we wanted more accurate forecasts, demographers..."

In a conditional construction, we need the "would". Look at how it would work in a NON-conditional:

To develop accurate population forecasts, demographers have to know a great deal more...

See how, in that example, without the "more," we're just talking about a fact (how forecasts are developed accurately)? But with the conditional, we need the complete conditional construction, with "would."

Let me know if you have any follow-up questions!


-t


Nice point about 'more'. I hadn't come across this explanation before, so in a different thread for the same question, I picked A.
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Re: SC: To develop more accurate population forecasts [#permalink] New post 21 Nov 2010, 18:20
english_august wrote:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic determinants of fertility.

A. have to know a great deal more than now about the social and economic
B. have to know a great deal more than they do now about the social and economical
C. would have to know a great deal more than they do now about the social and economical
D. would have to know a great deal more than they do now about the social and economic
E. would have to know a great deal more than now about the social and economical

OA is E. IMO it should be D. What do you think?


"Than they do now" is necessary because it clarifies that comparison is between demographer's current knowledge of social and economic determinants and future knowledge. Hence. I will pick D
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Re: SC: To develop more accurate population forecasts [#permalink] New post 21 Jun 2011, 19:14
OA is definitely D.

But I have a question, and this always bugs me. Shouldn't this sentence be "To develop more accurate population forecasts, demographers will(instead of would) have to know a great deal more than they do now about the social and economic"? :?
Isn't would used for hypothetical and will for certainty? Here the demographers certainly need to know a great deal....
Any insight is greatly appreciated.
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Re: SC: To develop more accurate population forecasts [#permalink] New post 03 Jan 2012, 06:05
TommyWallach wrote:
Hey All,

I got asked about this privately, but I think the same question was asked by mymisc as well. The question is, do we need the "would" here, and why? The issue is that this sentence is a hypothetical/conditional:

To develop more accurate population forecasts

We could reword this as "If we wanted more accurate forecasts, demographers..."

In a conditional construction, we need the "would". Look at how it would work in a NON-conditional:

To develop accurate population forecasts, demographers have to know a great deal more...

See how, in that example, without the "more," we're just talking about a fact (how forecasts are developed accurately)? But with the conditional, we need the complete conditional construction, with "would."

Let me know if you have any follow-up questions!

-t

Don't u think that "more accurate" and "accurate" are both conditional??
In both scenarios , It is a condition to achieve something..Can you give some more examples? :)
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Re: To develop more accurate population forecasts, demographers [#permalink] New post 12 Aug 2013, 10:30
Expert's post
Quote:
I don't find anything incorrect in the main sentence. The answer is D. We can easily eliminate B and C based on the word economical. Can you please help point out what is wrong is the main sentence and how can we correct it?


The beginning of the sentence suggests a hypothetical situation - so we need "would" in the beginning of the answer choice.
"In order to blah...something hypothetical has to happen"

So either (C), (D), or (E).

In (C) "economical" doesn't make sense. Between (D) and (E), (D) work out a lot better. Choose (D).
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Re: To develop more accurate population forecasts, demographers [#permalink] New post 25 Nov 2013, 19:54
How can we find out that the sentence explains a hypothetical situation? Are there any signal words?
Re: To develop more accurate population forecasts, demographers   [#permalink] 25 Nov 2013, 19:54
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