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Heterosexuals in the United States have a significantly

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Heterosexuals in the United States have a significantly [#permalink] New post 03 Nov 2009, 20:16
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Question Stats:

68% (01:56) correct 32% (01:08) wrong based on 79 sessions
Heterosexuals in the United States have a significantly lower chance of contracting AIDS than do heterosexuals in Sub-Saharan Africa.

A) a significantly lower chance of contracting AIDS than do
B) a significantly lower chance of contracting AIDS in comparison with
C) a great likelihood of a contracting AIDS more significant than do
D) a significantly lower likelihood of contracting AIDS as compared to
E) a significantly lower chance of contracting AIDS than those
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Re: Lower chance of contracting AIDS [#permalink] New post 03 Nov 2009, 20:38
gmattokyo wrote:
Heterosexuals in the United States have a significantly lower chance of contracting AIDS than do heterosexuals in Sub-Saharan Africa.

A) a significantly lower chance of contracting AIDS than do
B) a significantly lower chance of contracting AIDS in comparison with
C) a great likelihood of a contracting AIDS more significant than do
D) a significantly lower likelihood of contracting AIDS as compared to
E) a significantly lower chance of contracting AIDS than those


A.
"Lower than" is correct.
"Heterosexuals in the United States have.... lower...than do heterosexuals in Sub-Saharan Africa"
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Re: Lower chance of contracting AIDS [#permalink] New post 03 Nov 2009, 21:35
"B" for me.Not sure if "do" is correct in A

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Re: Lower chance of contracting AIDS [#permalink] New post 03 Nov 2009, 21:47
+1 for B as compared with is use to compare similar/disimilarity between similar objects

for ex He compared his notes with the notes of his friends.

does is the problem in option A.
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Re: Lower chance of contracting AIDS [#permalink] New post 04 Nov 2009, 01:23
IMO its A. ...Idiom ... lower..than.
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Re: Lower chance of contracting AIDS [#permalink] New post 04 Nov 2009, 07:08
Hey guys its clearly A

B does wrong comparison.

Heterosexuals in the United States have a significantly lower chance of contracting AIDS in comparison with heterosexuals in Sub-Saharan Africa.

lower chance of ........... than chance of heterosexuals in Sub-Saharan Africa would be correct

Chance should be compared with chance

Hope im correct
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Re: Lower chance of contracting AIDS [#permalink] New post 04 Nov 2009, 14:07
swatirpr wrote:
gmattokyo wrote:
Heterosexuals in the United States have a significantly lower chance of contracting AIDS than do heterosexuals in Sub-Saharan Africa.

A) a significantly lower chance of contracting AIDS than do
B) a significantly lower chance of contracting AIDS in comparison with
C) a great likelihood of a contracting AIDS more significant than do
D) a significantly lower likelihood of contracting AIDS as compared to
E) a significantly lower chance of contracting AIDS than those




'A'

Idiom Lower ... Than ...

IMO in A lower ...than is correct but "do" makes this choice worse than "B"
what is the "OA" ?
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Re: Lower chance of contracting AIDS [#permalink] New post 04 Nov 2009, 22:07
gmattokyo wrote:
Heterosexuals in the United States have a significantly lower chance of contracting AIDS than do heterosexuals in Sub-Saharan Africa.

A) a significantly lower chance of contracting AIDS than do
B) a significantly lower chance of contracting AIDS in comparison with
C) a great likelihood of a contracting AIDS more significant than do
D) a significantly lower likelihood of contracting AIDS as compared to
E) a significantly lower chance of contracting AIDS than those

What does "do" mean in option A. If it is "chance of contracting" then see how the sentence will look lile
Heterosexuals in the United States have a significantly lower chance of contracting AIDS than chance of contarcting heterosexuals in Sub-Saharan Africa.
Now look at option D after rephrasing-

As compared to heterosexuals in Sub-Saharan Africa, Heterosexuals in the United States have a significantly lower likelihood of contracting AIDS.

Correct comparison b/w heterosexuals in Sub-Saharan Africa and Heterosexuals in the United States.
Hence D should be the right answer.
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Re: Lower chance of contracting AIDS [#permalink] New post 05 Nov 2009, 06:44
Dear All, thanks for giving a try on this and apologies for delay in posting the OA...

OA:
[Reveal] Spoiler:
(A)

As pointed out above, this question tests the proper idiom: 'lower... than'. (B) through (D) all do not use the correct idiomatic phrases. (E) has a different problem, one of parallel structure. It uses 'have' and 'those', rather than the correct 'have' and 'do'.
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Re: Lower chance of contracting AIDS [#permalink] New post 10 Nov 2009, 19:48
fall2009 wrote:
gmattokyo wrote:
Heterosexuals in the United States have a significantly lower chance of contracting AIDS than do heterosexuals in Sub-Saharan Africa.

A) a significantly lower chance of contracting AIDS than do
B) a significantly lower chance of contracting AIDS in comparison with
C) a great likelihood of a contracting AIDS more significant than do
D) a significantly lower likelihood of contracting AIDS as compared to
E) a significantly lower chance of contracting AIDS than those


A.
"Lower than" is correct.
"Heterosexuals in the United States have.... lower...than do heterosexuals in Sub-Saharan Africa"



Hi

Could someone please explain why not E. it also has the proper idiom of lower than....

I thought we use 'do' only to mention actions, but have a lower likelihood is a property of a group or race , so why not use 'those;
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Re: Lower chance of contracting AIDS [#permalink] New post 10 Nov 2009, 20:21
Apart from the parallelism of “have” and “do”.

“those” does not has a referent (What is “those” referring to).
Here we are comparing “Heterosexuals in the United States” to “heterosexuals in Sub-Saharan Africa”.
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Re: Lower chance of contracting AIDS [#permalink] New post 11 Nov 2009, 09:23
Chose A and got convinced with my answer as I kept scrolling down.. Agree with the "lower than" idiomatic explanation..
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Re: Lower chance of contracting AIDS [#permalink] New post 20 Nov 2009, 11:06
Expert's post
Yes, it is A. If we erase "do" in option A, then the sentence implies American heterosexuals can somehow contract heterosexuals in Sub-Saharan Africa. This is illogical, as well as vague. The word "do" is essential here.
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Re: Lower chance of contracting AIDS [#permalink] New post 29 Dec 2010, 06:48
(A)

Note - "Chance of contracting AIDS" should be compared.

A) a significantly lower chance of contracting AIDS than do
B) a significantly lower chance of contracting AIDS in comparison with
C) a great likelihood of a contracting AIDS more significant than do
D) a significantly lower likelihood of contracting AIDS as compared to
E) a significantly lower chance of contracting AIDS than those[/quote]
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Re: Heterosexuals in the United States have a significantly [#permalink] New post 16 Nov 2014, 20:31
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).

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Re: Heterosexuals in the United States have a significantly   [#permalink] 16 Nov 2014, 20:31
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