GMAT Sentence Correction Discussions

Researchers have announced that the magnetic fields emitted by one manufacturers security surveillance system, of which type there are 200,000 worldwide, can interfere with pacemakers and that this interaction can bring on missed or irregular heartbeats, nausea, breathlessness, dizziness, and even fainting.

A. of which type there are 200,000 worldwide, can interfere with pacemakers and that
B. of which, worldwide, there are 200,000 of that type, and which can interfere with pacemakers, and
Sounds wordy and introduction of the 2nd which is ambigious
C. of which type there are 200,000 worldwide, they can interfere with pacemakers and
they is ambiguous
D. 200,000 of which type exist worldwide, interfering with pacemakers, and
Changes the meaning
E. 200,000 of that type existing worldwide and can interfere with pacemakers, and
Without commas that doesnt clearly define for magnetic fields or security surveillance system

Will go with A..

Whats the OA ??
IMO The answer should be

B

OA please !!


1532 fragments of figures...cannot include 7 intact, as they are fragments. So A, D, E are out.

Between B and C, I am going with C, as it is more concise and clear with respect to what is excavated. (I could be wrong).


1532 fragments of figures...cannot include 7 intact, as they are fragments. Thus, it was between B and C as rightly pointed out by you.

The OA is B.
Please explain

First discovered more than 30 years ago, Lina's sunbird, a four-and-a-half-inch animal found in the Phillippines and that resembles hummingbird, has shimmering metallic colors on its head; a brilliant orange patch, bordered with red tufts, in the center of its breast; and a red eye.

A. found in the Phillippines and that resembles
B. found in the Phillippines and that, resembling
C. found in the Phillippines and resembling
D. that is found in the Phillippines and it resembles
E. that is found in the Phillippines and that, resembling

Please explain

First discovered more than 30 years ago, Lina's sunbird, a four-and-a-half-inch animal found in the Phillippines and that resembles hummingbird, has shimmering metallic colors on its head; a brilliant orange patch, bordered with red tufts, in the center of its breast; and a red eye.

A. found in the Phillippines and that resembles
B. found in the Phillippines and that, resembling
C. found in the Phillippines and resembling
D. that is found in the Phillippines and it resembles
E. that is found in the Phillippines and that, resembling


IMO: C
Classic parallelism question.
C is the only choice where 'found' and 'resembling' are parallel. Yes, 'found' and 'resemble+ing' are considered parallel. In all other choices, either 'it' or 'that' interferes with parallelism.
Please explain
First discovered more than 30 years ago, Lina's sunbird, a four-and-a-half-inch animal found in the Phillippines and that resembles hummingbird, has shimmering metallic colors on its head; a brilliant orange patch, bordered with red tufts, in the center of its breast; and a red eye.

A. found in the Phillippines and that resembles
B. found in the Phillippines and that, resembling
C. found in the Phillippines and resembling
D. that is found in the Phillippines and it resembles
E. that is found in the Phillippines and that, resembling



My answer is C

Correctly modifies Lina's sunbird !!
Researchers have announced that the magnetic fields emitted by one manufacturers security surveillance system, of which type there are 200,000 worldwide, can interfere with pacemakers and that this interaction can bring on missed or irregular heartbeats, nausea, breathlessness, dizziness, and even fainting.

A. of which type there are 200,000 worldwide, can interfere with pacemakers and that
B. of which, worldwide, there are 200,000 of that type, and which can interfere with pacemakers, and
C. of which type there are 200,000 worldwide, they can interfere with pacemakers and
D. 200,000 of which type exist worldwide, interfering with pacemakers, and
E. 200,000 of that type existing worldwide and can interfere with pacemakers, and


Option D is my answer

correctly modifies surveillance systems and no other has proper diction !!
Researchers agreed that the study treatments for heart attack patients was extremely important but more research was needed to determine that baloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than the balloon procedure by itself.

a. Same as above
b. more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is
c. that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patiens than
d. that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack pathents than
e. that more research was needed for determining that balloon angioplasty preceded by ultrasound is or is not any better for heart attack patients than is


I chose C here! But OA is B 😞 (though I doubt that option strongly). Do you people think of any strong reason why B is better than C?


but that sounds as an improper construction

therefore my answer will be B
Hello guys,

pls try on this one with explanation..




According to a survey, of graduating medical students conducted by the association of American medical colleges, minority graduates are nearly four times more likely than are other graduates in planning to practice in socioeconomically deprived areas.
A. same.
B. minority graduates are nearly 4 times more likely than other grads who plan on practicing
C. minority graduates are nearly 4 times as likely as other grads to plan on practicing
D. it is nearly 4 times more likely that minority grads rather than other grads will plan to practice
E. it is nearly 4 times as likely for minority grads than other grads to plan to practice


My answer is C
IMO: C
Classic parallelism question.
C is the only choice where 'found' and 'resembling' are parallel. Yes, 'found' and 'resemble+ing' are considered parallel. In all other choices, either 'it' or 'that' interferes with parallelism.


Should'nt there be an article like a/the before hummingbird ?

found in X resembling the hummingbird, has Y
mvikred Says
My answer is C


CAn u explain why A is incorrect ? I found this Q in Gmat Prep.
Here are my two problems :

Discrimination in wages paid in occupations that are predominantly male over the predominantly female have given rise to substantial differentials between the wage of housepainters and secretaries and between the wages of parking-lot attendants and library assistants.
(A) paid in occupations that are predominantly male over the predominantly female have
(B) paid in occupations that are predominantly male over those that are predominantly female have
(C) that favors predominantly male occupations over the predominantly female have
(D) that favors predominantly male occupations over those that are predominantly female has
(E) paid in predominantly male occupations over the predominantly female has


Developing nations in various parts of the world have amassed $700 billion in debts; at stake, should a significant number of these debts be repudiated, is the solvency of some of the worlds largest multinational banks.
(A) should a significant number of these debts be repudiated, is
(B) should a significant number of these debts be repudiated, are
(C) should they repudiate a significant number of these debts, are
(D) if there is a repudiation of a significant number of these debts, would be
(E) if a significant number of these debts will` be repudiated, is


1.D
Discrimination is the subject and the verb should be has, not have. So A, B, C are out. In E, "the predominantly female" sounds incorrect...

2.A

One more from Gmat Prep guys ...confusing one....pls help understand...


United States Senator Daniel Inouye was appointed to several posts within the Democratic party during his first term, that included assistant majority whip and vice-chair of the democratic Senatorial Committee.


A. that included

B. which includes

C. including

D. some of which were

E. among them being

One more from Gmat Prep guys ...confusing one....pls help understand...


United States Senator Daniel Inouye was appointed to several posts within the Democratic party during his first term, that included assistant majority whip and vice-chair of the democratic Senatorial Committee.


A. that included

B. which includes
use of which is not correct here,coz it wrongly suggests that the term included X & Y

C. including

D. some of which were
wordy & awkward

E. among them being
being what????


B, D and E are out..
Bet A & C, C fits better..

IMO C

wats the OA?
One more from Gmat Prep guys ...confusing one....pls help understand...


United States Senator Daniel Inouye was appointed to several posts within the Democratic party during his first term, that included assistant majority whip and vice-chair of the democratic Senatorial Committee.


A. that included

B. which includes

C. including

D. some of which were

E. among them being


I will go with option C for the above one.
deepakraam Says
I will go with option C for the above one.

B, D and E are out..
Bet A & C, C fits better..

IMO C

wats the OA?



OA is C...

confused with C as well....feels "including" is improperly modifying first term...

same with option A...

whats ur say guys ?

Here's one..

Downzoning, zoning that typically results in the reduction of housing density, allows for more open space in areas where little water or services exist.
(A) little water or services exist
(B) little water or services exists
(C) few services and little water exists
(D) there is little water or services available
(E) there are few services and little available water

Here's one..

Downzoning, zoning that typically results in the reduction of housing density, allows for more open space in areas where little water or services exist.
(A) little water or services exist
(B) little water or services exists
(C) few services and little water exists
(D) there is little water or services available
(E) there are few services and little available water

Ans sud be E..
clearly fixes d problem of few & little.. services require few( countable) and water requires little( uncountable)
Here's one..

Downzoning, zoning that typically results in the reduction of housing density, allows for more open space in areas where little water or services exist.
(A) little water or services exist
(B) little water or services exists
(C) few services and little water exists
(D) there is little water or services available
(E) there are few services and little available water


I will go with option D
deepakraam Says
I will go with option D


hey deepak.. dont u think little here seem to refer water as well as other services while for services, appr. modifing word is few???
Here's one..

Downzoning, zoning that typically results in the reduction of housing density, allows for more open space in areas where little water or services exist.
(A) little water or services exist
(B) little water or services exists
(C) few services and little water exists
(D) there is little water or services available
(E) there are few services and little available water


IMO: E
few services and little water fits correctly.