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12 Jan 2008, 09:23
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Question Stats:

100% (01:31) correct 0% (00:00) wrong based on 13 sessions

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During the 1980’s approximately $50 billion in private investment capital is estimated to have left Mexico and added to the strain on the country’s debt-ridden economy. (A) During the 1980’s approximately$50 billion in private investment capital is estimated to have left Mexico and added

(B) During the 1980’s it is estimated that approximately $50 billion in private investment capital left Mexico and added (C) It is estimated that there was approximately$50 billion in private investment capital that left Mexico during the 1980’s and added

(D) It is estimated that during the 1980’s approximately $50 billion in private investment capital left Mexico, adding (E) Approximately$50 billion in private investment capital is estimated as having left Mexico during the 1980’s, adding

I chose B, but it's not correct. would someone please explain to me what is this question really testing? some grammatical explanation for your given answer would be super! also, what's wrong with B? thanks
If you have any questions
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Re: SC: Estimate? approximate? or both? [#permalink]

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12 Jan 2008, 12:55
i would pick D. no particular explanation, just intuitively.

B looks flawed because

During the 1980’s it is estimated that approximately $50 billion in private investment capital left Mexico and added to the strain on the country’s debt-ridden economy. CEO Joined: 29 Mar 2007 Posts: 2562 Followers: 21 Kudos [?]: 453 [0], given: 0 Re: SC: Estimate? approximate? or both? [#permalink] Show Tags 12 Jan 2008, 13:39 tarek99 wrote: During the 1980’s approximately$50 billion in private investment capital is estimated to have left Mexico and added to the strain on the country’s debt-ridden economy.

(A) During the 1980’s approximately $50 billion in private investment capital is estimated to have left Mexico and added (B) During the 1980’s it is estimated that approximately$50 billion in private investment capital left Mexico and added

(C) It is estimated that there was approximately $50 billion in private investment capital that left Mexico during the 1980’s and added (D) It is estimated that during the 1980’s approximately$50 billion in private investment capital left Mexico, adding

(E) Approximately $50 billion in private investment capital is estimated as having left Mexico during the 1980’s, adding I chose B, but it's not correct. would someone please explain to me what is this question really testing? some grammatical explanation for your given answer would be super! also, what's wrong with B? thanks Its ok to being a sentence with it so D is my answer. Also notice that the phrase "It is estimated that during the 1980’s approximately$50 billion in private investment capital left Mexico" is modifying the rest of the sentence or in this case intensifying then strain on the economy.

E: is awkward.
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Re: SC: Estimate? approximate? or both? [#permalink]

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12 Jan 2008, 15:45
thanks a lot guys! i really appreciate it. the OA is D.
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Re: SC: Estimate? approximate? or both? [#permalink]

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18 Mar 2010, 01:33
Can someone explain the prob with A
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Re: SC: Estimate? approximate? or both? [#permalink]

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05 Apr 2010, 09:09
Option (A) - During the 1980’s approximately $50 billion in private investment capital is estimated to have left Mexico and added -$50 billion is singular - so have is not needed. also uage os present perfect is incorrect.
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Re: SC: Estimate? approximate? or both? [#permalink]

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06 Apr 2010, 20:49
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Hey All,

Just wanted to weigh in on this one quickly. You've all arrived at the right answer, but there's been some misinformation spread about why some of the answer choices are wrong. Let's look at them one by one.

During the 1980’s approximately $50 billion in private investment capital is estimated to have left Mexico and added to the strain on the country’s debt-ridden economy. The two major issues here are Modifiers and Parallelism. If you don't see that...it's time to buy the MGMAT SC guide! : ) (A) During the 1980’s approximately$50 billion in private investment capital is estimated to have left Mexico and added
PROBLEMS:

MODIFIER: Prepositional phrases will often be bounced around sentences. This will necessarily change the meaning. DO NOT think that it doesn't matter where these prepositional phrases go. The phrase here is "During the 1980s" which is modifying the verb "is estimated" in this answer choice. But the estimation didn't happen during the 1890s, the money left during the 1980s. ALSO, the word "have" is not incorrect. It is neither singular nor plural, but part of the infinitive form "to have".

PARALLEL: The capital did not "leave Mexico" and "add strain". The FACT that money disappeared added strain, not the money itself.

(B) During the 1980’s it is estimated that approximately $50 billion in private investment capital left Mexico and added PROBLEMS: MODIFIER: Same as A. PARALLEL: Same as A. (C) It is estimated that there was approximately$50 billion in private investment capital that left Mexico during the 1980’s and added

PROBLEMS:

MODIFIER: This issue is fixed because the "during the 1980's" comes AFTER the estimation now.

PARALLEL: Same as A.

(D) It is estimated that during the 1980’s approximately $50 billion in private investment capital left Mexico, adding CORRECT ANSWER! MODIFIER: This issue is fixed, because the "during the 1980s" comes AFTER the word estimated now. PARALLEL: Instead of keeping capital as the subject of the verb "add", we've changed the verb "add" to the participle/modifier "adding", which modifies the FACT that the money left Mexico. This is what we were looking for all along. (E) Approximately$50 billion in private investment capital is estimated as having left Mexico during the 1980’s, adding

MODIFIER: During the 198s is okay.

IDIOM: You have to say "estimate to", not "estimate as" or even "estimate at".

Hope that helps!

-tommy
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Tommy Wallach | Manhattan GMAT Instructor | San Francisco

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Re: SC: Estimate? approximate? or both? [#permalink]

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07 Apr 2010, 08:35
Thanks Tommy. Very useful post.
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Re: SC: Estimate? approximate? or both? [#permalink]

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08 Apr 2010, 03:28
D
If I look at the meaning I would say that "adding/added" happened after "left." An effect--that lingered for a while and took longer to show up in the statistics -- would be better served by participle modifier.
Confusing? Sorry...Tommy has clearer explanation.
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Re: During the 1980s approximately $50 billion in private [#permalink] Show Tags 15 Feb 2015, 00:16 Hello from the GMAT Club VerbalBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. Re: During the 1980s approximately$50 billion in private   [#permalink] 15 Feb 2015, 00:16
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