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by rahcool4u » Fri May 29, 2009 11:11 am
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 that they do now about 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
[spoiler]Answer E

[/spoiler]
I got the answer as C, considering the comparison rules. Please share your thoughts
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Source: — Sentence Correction |
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by scoobydooby » Fri May 29, 2009 11:22 am
i like D

A. improper comparison between demographers' knowledge and now :)

D. correct IMO. social and economic gels well. economic: to do with the economy. also properly compares demographers knowledge in future to knowledge now

B, C and E out because economical means cheap and doesnt fit in.


hey rahcool4u,
whats the source?
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by cata1yst » Fri May 29, 2009 5:50 pm
scoobydooby wrote:i like D

A. improper comparison between demographers' knowledge and now :)

D. correct IMO. social and economic gels well. economic: to do with the economy. also properly compares demographers knowledge in future to knowledge now

B, C and E out because economical means cheap and doesnt fit in.


hey rahcool4u,
whats the source?
I definitely think D is the answer.

"...more than they do now..." is required to complete the comparison.

I agree with the reasons above that "economic" is also correct here.
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by Kebab » Fri May 29, 2009 6:00 pm
Somebody please explain me why should we insert "would" in this case? For me, the structure without "would" is less wordier and does not change the meaning.
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by rahcool4u » Sat May 30, 2009 3:20 am
got the question from GMAT paper sets ( 20) . Take a look at the attachment.
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GMAT Paper Sets 1-20.rar
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