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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 24 Dec 2008, 14:55
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To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic detriments 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

Question 32 Set 1

help
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Re: SC: Demographers [#permalink] New post 24 Dec 2008, 23:31
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hbs2012 wrote:
Question 32 Set 1

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

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 then now about the social and economical.

help


A,E --> comparing "have to know a great deal" vs "now" ---> INCORRECT.

"have to know a great deal" vs "they do [know]now" --> Proper comparision

B,C,E -- economical -- which means "cheap" is not appropriate in this contest

Economic means "having to do with the economy or the study of economics."

Economical means "careful or prudent in managing finances, money- saving."

D is the best.
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Re: SC: Demographers [#permalink] New post 29 Dec 2008, 04:20
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IMO, D

'would have' is used in conditional statement
Would as a verb tense should be used only when a condition involving If is present.
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Re: To develop more accurate population forecasts, demographers [#permalink] New post 11 Feb 2013, 10:12
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rajathpanta wrote:
Vercules wrote:
Hi rajathpanta,

Which question you are referring to. The main question of the post or your specific question. If it is your specific question, the please let me know which one.

Vercules


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

Here, why is would used?? I wanted to understand that as per your explanation given.


Hi rajathpanta,

In my last explanation I did not discuss hypothetical would, but a few rules related to would. I guess that you are confused because you are not able to find any conditional construct in the question above. The hypothetical would is used based on the context of the sentence. In almost all the questions which test standard conditional constructs "if then" constructions are used.

See the below question from OG12 which uses the conditional if x happened, then y would happen.

Q 67) Affording strategic proximity to the Strait of Gibraltar,.......

In the question above hypothetical conditional would is used. The sentence expresses a hypothetical situation, which needs a hypothetical conditional would. But, the incorrect answers are incorrect for different reasons, other than the use of would.

The question does not really test your knowledge on conditionals if you solve it by POC. The following question will also have the correct answer as (D). I have just made a change in option (D) ( "would have to" to "have to")

To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic detriments 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) 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


Correct choice is (D) because other options are wrong for clear grammatical and contextual errors; Although, "would have to know" will be better because the hypothetical situation is being discussed


The same conditional is tested in the following OG question;

Q 16) Retail sales rose 0.8 of 1 percent in August,
intensifying expectations that personal spending.....

I hope the above explanation helps,

Vercules
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Re: SC: Demographers [#permalink] New post 09 Jan 2009, 08:51
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hbs2012 wrote:
Question 32 Set 1

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

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 then now about the social and economical.

help


D. "To develop ......... forecasts" is a future act, so require "............ would have to" know"
Economic > economical.
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Re: SC: Demographers [#permalink] New post 22 May 2010, 20:39
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I'll go for "D".

But, there is one question in answer choice "D" THEY refers to what? Population or Demographers? Is this ambigous or Ok?
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Re: To develop more accurate population forecasts, demographers [#permalink] New post 08 Jun 2012, 06:24
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hbs2012 wrote:
To develop more accurate population forecasts, demographers have to know a great deal more than now about the social and economic detriments 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

Question 32 Set 1

help


i pick D here. this is a conditional sentence. one condition is to be fulfilled to develop more accurate population forecasts that demographers need to know more social and economic detrimental facts of fertility. So A and B are out. "economical" is just wrong here so C is out. in E comparison is not expressed properly. correct me if i am wrong.

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Re: To develop more accurate population forecasts, demographers [#permalink] New post 11 Feb 2013, 07:34
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rajathpanta wrote:
MGMAT says 'would' is used to express the future from the past's point of view.

Ex- The scientist believes that the machine would be wonderful

The above example is wrong as 'believes' is in present. If believes is replaced by 'believed' the ex becomes correct.

Now can someone explain why would is used here as the tense used in the question is simple present/present perfect.


Hi rajathpanta,

The scientist believes that the machine would be wonderful --> is incorrect because here we are mixing present with conditional.

Why is this so? because it is a rule. For conditionals there a few rules and you have to just remember them, there is not much to understand here. The rules on Conditionals are governed by set rules. MGMAT has explained the rules quite well, just make a note of them.

Consider this sentence: The scientist said that the machine would be wonderful. --> here "would" is expressing past as it is being used in the reported speech. The sentence is correct as per another rule on the usage of would.

The scientist believed that the machine would be wonderful - Correct usage, "would" expresses future from the past point of view.

Hope that helps,

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Re: To develop more accurate population forecasts, demographers [#permalink] New post 11 Feb 2013, 10:55
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of if there is a conditional and there are options with 'would' and options without 'would' we should prefer the 'would' ones is what I can gather as of now.
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Re: To develop more accurate population forecasts, demographers [#permalink] New post 11 Feb 2013, 11:15
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rajathpanta wrote:
of if there is a conditional and there are options with 'would' and options without 'would' we should prefer the 'would' ones is what I can gather as of now.


Hi rajathpanta,

From what I have seen in a lot of GMAT questions, I agree with you. In my estimate, I think you will be correct 80% of the times in selecting answer choice with would. Most often than not I have seen that it is relatively easier to do a 3:2 split based on apparent errors, but if you are stuck between two otherwise correct answer choices, which differ in the placement of just a word, then the choice with that word is likely to be the correct one.

Following example from OG12 contains an incorrect "would" option.

Q 39) In 1527 King Henry VIII sought to have his marriage to.......

Option (E) contains a conditional would, but you can get from the meaning that the usage is incorrect.

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Re: SC: Demographers [#permalink] New post 24 Dec 2008, 15:05
I'd go with (D).


This is future conditional, so I would eliminate (A) and (B) since they do not have "would".

I would eliminate (E) because of the faulty comparison. Comparing "know a great deal" and "now" is not apples to apples.

Your remaining choices are identical except for economic v. economical. Economical sounds weird to me in this context, so I'd go with (D).
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Re: SC: Demographers [#permalink] New post 08 Jan 2009, 12:54
I totally agree.. but the correct answer option according to the answer key that I ahve is E

which for the reason mentioned above.. can not be true..

sorry for the delay in replyin
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Re: SC: Demographers [#permalink] New post 08 Jan 2009, 22:56
no ways......... E can not be the answer. For comparison , than is used but E uses then which is used for time
hbs2012 wrote:
I totally agree.. but the correct answer option according to the answer key that I ahve is E

which for the reason mentioned above.. can not be true..

sorry for the delay in replyin

Last edited by ritula on 09 Jan 2009, 21:42, edited 1 time in total.
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Re: SC: Demographers [#permalink] New post 10 Jan 2009, 19:31
D is appropriate; but OA is said to be E.
may be OP made a typo by mistake and typed then as opposed to than. Still,
more than now as opposed to more than they do now is right?
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hbs2012 wrote:
Question 32 Set 1

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

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 then now about the social and economical.

help


D. "To develop ......... forecasts" is a future act, so require "............ would have to" know"
Economic > economical.

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Re: SC: Demographers [#permalink] New post 21 May 2010, 05:59
Would go with 'D'.

But can some one deferentiate between

Socio and economic vs social and economic.

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Re: SC: Demographers [#permalink] New post 21 May 2010, 06:49
should be (D).

I dont agree with OA.

'economical' is wrong in this context. Also the comparison is wrong in E
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Re: SC: Demographers [#permalink] New post 21 May 2010, 12:03
Where is this question from? Thanks.
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Re: SC: Demographers [#permalink] New post 22 May 2010, 04:48
What's the source of this question (and strange OA)?

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Re: SC: Demographers [#permalink] New post 22 May 2010, 07:01
I go with D.

First of all, A is incorrect due to nonparallel structure
B, C, E are eliminated due to incorrect word use "economical"
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Re: SC: Demographers [#permalink] New post 22 May 2010, 07:23
OA doesn't make any sense! What is the source?

Does someone have any explanations for the OA given?!
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Re: SC: Demographers   [#permalink] 22 May 2010, 07:23
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