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To develop more accurate population forecasts, demographers

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 31 May 2014, 00:30
yolandaxu wrote:
How can we find out that the sentence explains a hypothetical situation? Are there any signal words?


To identify the hypothetical situation you have to understand the meaning also there is ,in some cases, inclusion of 'if'/'wish' clause that marks the hypothetical situation.
Think is the sentence is talking about an uncertainty (contrary to reality) for example :

If it rains,(then) we will go out -- here IF denotes the conditional occurrence of an event in future on which another event depends which might occur.
Here we used 'will' because the conditional clause is in present tense.

other cases Past and Perfect - uses would and would have respectively.... Other point to note such sentence always uses plural verb form (instead of was -- it will be were) irrespective of the subject
If I were king, I would rule the world.
If I had two cars, I would have never own a bicycle.

"would" is generally used for the refer future in the past.

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Re: To develop more accurate population forecasts, demographers [#permalink]

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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 determinants of fertility.

A. have to know a great deal more than now about the social and economic - Since it is a hypothetical situation, a conditional clause must be used. Economic is correct
B. have to know a great deal more than they do now about the social and economical - Hypothetical Situation + Economical is wrong
C. would have to know a great deal more than they do now about the social and economical - Would Have is correct. Economical is wrong.
D. would have to know a great deal more than they do now about the social and economic - Correct
E. would have to know a great deal more than now about the social and economical - Illogical Comparison between knowledge and Time (Now). Economical is wrong

Economic - Is used to refer to general general economy
Economical is used for cost wise reference. E.g. Product X is economical (not economic)
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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 07 Nov 2014, 03:52
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

Bold areas : issues
Highlighted option correct.
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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 27 Mar 2015, 11:37
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


One must note a use of 'would' to show uncertainty.

Secondly, one must also note a difference between economic vs. economical.

economic is the subject economics.

economical is cheap/ low price

Hence, option D is a right choice with correct usage of would and economic.

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 28 Aug 2015, 20:37
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


if A contain "in the future" so that it parallel to "now" then, A will be correct

if we can use "now" in the second part of comparison but have no corresponding part in the first part such as "in the future" the sentence is not parallel.

we add"they do" to make sentence paralel.

A means

they have to know more than they have to know now.
future time is needed in the first part of sentence
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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 18 Sep 2015, 11:39
but isnt would is used with past and will is used with present? here we are talking about present right? so will should come in answer but would is there.. kindly please can anyone explain this to me

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Re: To develop more accurate population forecasts, demographers [#permalink]

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"Would" is used for - Uncertainty (meaning wise) and technically "Would" is used in reference to "Past as well as Future tense"

In this question, since population forecasts need to be developed (not yet developed) , there is an element of uncertainty as far as know how of demographers w.r.t social and economic determinants is concerned. That's the reaon "Would" is used.
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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 07 Jan 2016, 08:29
Does it make sense to have will instead of would?
would the sentence still be right?

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 07 Jan 2016, 10:42
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

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 07 Jan 2016, 11:22
goforgmat wrote:
Does it make sense to have will instead of would?
would the sentence still be right?

Nopes. Its the same reason that you used would for your second question. This is a hypothetical situation. We are not sure if one will would into another. Its a speculation. This is a 'hypothetical subjunctive'. Hence, would is better suited.

Ex - It will rain tomorrow - There is a certainity
If I were intelligent, I would score a perfect 800 - I speculate or hypothesize the possibility of scoring 800 if I were intelligent. There is no certainty.

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 20 Mar 2016, 04:55
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


GmatDestroyer2013 wrote:
yolandaxu wrote:
How can we find out that the sentence explains a hypothetical situation? Are there any signal words?


To identify the hypothetical situation you have to understand the meaning also there is ,in some cases, inclusion of 'if'/'wish' clause that marks the hypothetical situation.
Think is the sentence is talking about an uncertainty (contrary to reality) for example :

If it rains,(then) we will go out -- here IF denotes the conditional occurrence of an event in future on which another event depends which might occur.
Here we used 'will' because the conditional clause is in present tense.

other cases Past and Perfect - uses would and would have respectively.... Other point to note such sentence always uses plural verb form (instead of was -- it will be were) irrespective of the subject
If I were king, I would rule the world.
If I had two cars, I would have never own a bicycle.

"would" is generally used for the refer future in the past.


Is there any clear guideline (eg. "more" as a must-be signal word) in distinguishing between a factual sentence and a hypothetical/conditional situation?
Seriously, I fail to justify why this sentence can't be a factual statement (since it lacks "if"), which makes "would" redundant.

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 25 Mar 2016, 00:56
Post bump. Still unable to understand this even with extensive reading online. Any taker?

gmatretest wrote:
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


GmatDestroyer2013 wrote:
yolandaxu wrote:
How can we find out that the sentence explains a hypothetical situation? Are there any signal words?


To identify the hypothetical situation you have to understand the meaning also there is ,in some cases, inclusion of 'if'/'wish' clause that marks the hypothetical situation.
Think is the sentence is talking about an uncertainty (contrary to reality) for example :

If it rains,(then) we will go out -- here IF denotes the conditional occurrence of an event in future on which another event depends which might occur.
Here we used 'will' because the conditional clause is in present tense.

other cases Past and Perfect - uses would and would have respectively.... Other point to note such sentence always uses plural verb form (instead of was -- it will be were) irrespective of the subject
If I were king, I would rule the world.
If I had two cars, I would have never own a bicycle.

"would" is generally used for the refer future in the past.


Is there any clear guideline (eg. "more" as a must-be signal word) in distinguishing between a factual sentence and a hypothetical/conditional situation?
Seriously, I fail to justify why this sentence can't be a factual statement (since it lacks "if"), which makes "would" redundant.

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 28 Mar 2016, 05:37
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gmatretest wrote:
Post bump. Still unable to understand this even with extensive reading online. Any taker?



gmatretest wrote:

Is there any clear guideline (eg. "more" as a must-be signal word) in distinguishing between a factual sentence and a hypothetical/conditional situation?
Seriously, I fail to justify why this sentence can't be a factual statement (since it lacks "if"), which makes "would" redundant.


A more accurate population forecast does not exist now. A forecast exists, but it is just as accurate as it is now - it is not more accurate than it is now. Developing a more accurate forecast is a hypothetical situation - it may or may not be possible to develop more accurate forecasts. The outcome depends on another hypothetical situation: the demographers would have to know more. It may or may not be possible for the demographers to know more. Hence the statement is hypothetical and not factual.

However if we already knew that it is possible for the demographers to have more accurate knowledge and in such case more accurate forecasts could be developed, we would not then require "would" - in that case the statement would be factual and grammatically correct without "would". However we do not have a grammatically correct option without "would" ( A wrong - comparison issues , B wrong - use of economical). Hence option D is the best.

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 06 May 2016, 09:07
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
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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 25 Jun 2016, 10:58
The phrase has to use a tense that isn't the present. The comparison has to follow a parallel structure. The impact is economic rather than economical.

All 3 conditions point to one answer choice: D.
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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 25 Jun 2016, 11:24
this question is way to easy to get the correct choice,

for developing forecasts demographers WOULD have to know, not HAVE to.

eliminate A and B

next problem is social and economic not economical-economical deals with efficiency and economic monetarily .

so we need economic.

C and E are eliminated .Left with D which is correct

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 20 Jul 2016, 21:25
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


Since we are talking about future, there is an uncertainty. hence we need to use would not have.
Eliminate options A and B

There is a big difference between economical (cheap) and economic (related to money matters)
We are talking about economic determinants.
Eliminate options C and E

Correct Option: D
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Last edited by OptimusPrepJanielle on 21 Jul 2016, 21:53, edited 1 time in total.

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 21 Jul 2016, 00:37
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


ANSWER IS D

First of all one should know use of ECONOMICAL is incorrect in this sentence. "ECONOMICAL" means affordable, cheap, not expensive
The correct term to use here would be "ECONOMIC". ECONOMIC means related to money, economics or monetary reasons

Option B,C and E are out because of wrong word "ECONOMICAL"

Option A and D remaining

Since the sentence suggest a future action, "would" is the correct tense

Option A is out because it makes a faulty comparison and is not parallel. Also does not have the correct future tense "would"

Option D is flawless.:- Correct term "Economic" Correct comparison "demographers .... great deal more than they do" and correct future tense "would"

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
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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 11 Sep 2016, 08:39
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

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Re: To develop more accurate population forecasts, demographers [#permalink]

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New post 15 Sep 2016, 01:36
[quote="devinawilliam83"]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
The sentence refers to an action in future tense. "would have" correctly reflects the tense than "have"
B. have to know a great deal more than they do now about the social and economical
The sentence refers to an action in future tense. "would have" correctly reflects the tense than "have"
"economical" refers to something good value in return,while "economic" is something related to money
C. would have to know a great deal more than they do now about the social and economical
"economical" refers to something good value in return,while "economic" is something related to money
D. would have to know a great deal more than they do now about the social and economic
Correct: tense of the sentence is correct. Word "economic" is correctly used
E. would have to know a great deal more than now about the social and economical
"economical" refers to something good value in return,while "economic" is something related to money
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Re: To develop more accurate population forecasts, demographers   [#permalink] 15 Sep 2016, 01:36

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