GMAT Sentence Correction Discussions

ok. two quick questions. and since iam not trying to test your collective intelligence πŸ˜ƒ but iam looking to understand the choices better, the answers have also been highlighted.

1. In assessing the problems faced by rural migrant workers, the question of whether they are better off materially than the urban working poor is irrelevant.
(A) In assessing the problems faced by rural migrant workers, the question of whether they are better off materially than the urban working poor is irrelevant. (WHY INCORREECT?)
(B) The question of whether the rural migrant worker is better off materially than the urban working poor is irrelevant in assessing the problems that they face.
(C) A question that is irrelevant in assessing the problems that rural migrant workers face is whether they are better off materially than the urban working poor.
(D) In an assessment of the problems faced by rural migrant workers, the question of whether they are better off materially than the urban working poor is irrelevant. (WHY CORRECT?)
(E) The question of whether the rural migrant worker is better off materially than the urban working poor is irrelevant in an
assessment of the problems that they face.

2. In the most common procedure for harvesting forage crops such as alfalfa, as much as 20 percent of the leaf and small-stem material, which is the most nutritious of all the parts of the plant, shattered and fell to the ground.
(A) which is the most nutritious of all the parts of the plant, shattered and fell
(B) the most nutritious of all parts of the plant, shatter and fall
(C) the parts of the plant which were most nutritious, will shatter and fall
(D) the most nutritious parts of the plant, shatters and falls. (WHY CORRECT? With the inclusion of AND, the subject becomes plural and the answer should be (B))
(E) parts of the plant which are the most nutritious, have shattered and fallen

thanks guys!

I'll explain the second question first..........

subject is "20 percent of the leaf and small-stem material. 20 percent of"leaf" and "small-stem material." you can't say "20 percent of the leaf." "Leaf" is a countable noun . It would have to be "20 percent of the leaves."
The other way is 20 percent of the material. The material consists of leaves and small stems, and so it can be called "leaf and small-stem material."

So subject is singular so ans D. But there is slight problem with D when subject is singular following appositive to be singular also: "the most nutritious part of the plant."

Hope this will clear ur doubt........

hmm...point.

wot about the other one?

In Statement (A), "their tires" refers to the car owners and not the cars !
Statements (C), (D) and (E) also have errors in them.

Is the answer (B)?


Can someone explain why A cannot be the answer to this question?
1. Car owners who inflate their tires properly can substantially boost their vehicles fuel efficiency, since the increase in car-road friction can waste up to five percent of car fuel by underinflation.
(A) Car owners who inflate their tires properly can substantially boost their vehicles fuel efficiency, since the increase in car-road friction can waste up to five percent of car fuel by underinflation.
(B) Because the underinflation of tires can waste up to five percent of a cars fuel by increasing car-road friction, car owners can substantially boost their vehicles fuel efficiency by properly inflating the tires.
(C) Their vehicles fuel efficiency is substantially boosted by car owners through the proper inflation of tires that, when underinflated, can waste up to five percent of car fuel by an increase in car-road friction.
(D) The proper inflation of tires by car owners, due to the fact that underinflation can waste up to five percent of a cars fuel by the increase of car-road friction, can substantially boost their fuel efficiency.
(E) Because up to five percent of a cars fuel are wasted through the increases in car-road friction when the tires are underinflated, car owners properly inflating tires can substantially boost their fuel efficiency.
In Statement (A), "their tires" refers to the car owners and not the cars !
Statements (C), (D) and (E) also have errors in them.

Is the answer (B)?


Yes i concur ..answer shud b B and ur reasoning also seems to be perfectly fine

Which one is correct......

greund preceded by possesive or participl preceded by possesive

Can anyone provide details on this.........

A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.
(A) A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,
(B) A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,
(C) A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,
(D) The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that
(E) The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,

Pls provide reasoning.....

Is the Answer (E)?

Here's my reasoning:-

(A), (B), (C) and (D) are flawed because they all talk about a substance from the madagascar periwinkle being cultivated in china. instead of the madagascar periwinkle itself !

Plz correct me if i'm wrong.

A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.

(A) A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,
(B) A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,
(C) A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,
(D) The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that
(E) The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,

Pls provide reasoning.....
Is the Answer (E)?

Here's my reasoning:-

(A), (B), (C) and (D) are flawed because they all talk about a substance from the madagascar periwinkle being cultivated in china. instead of the madagascar periwinkle itself !

Plz correct me if i'm wrong.

ya the ans is correct.......
Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.
(A ) Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear. (B ) An executive who is heavily committed to a course of action, especially one that worked well in the past, makes missing signs of incipient trouble or misinterpreting ones likely when they do appear. (C ) An executive who is heavily committed to a course of action is likely to miss or misinterpret signs of incipient trouble when they do appear, especially if it has worked well in the past.
(D ) Executives being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when they do appear.
(E ) Being heavily committed to a course of action, especially one that has worked well in the past, is
likely to make an executive miss signs of incipient trouble or misinterpret them when they do appear.
Pls throw some light on reasoning;)

I narrowed it down to answer choices (C) and (E).. I am unable to make up my mind between these 2 ! I am more inclined to (C) though..

Can't wait to know the actual answer..

Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.
(A ) Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear. (B ) An executive who is heavily committed to a course of action, especially one that worked well in the past, makes missing signs of incipient trouble or misinterpreting ones likely when they do appear. (C ) An executive who is heavily committed to a course of action is likely to miss or misinterpret signs of incipient trouble when they do appear, especially if it has worked well in the past.
(D ) Executives being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when they do appear.
(E ) Being heavily committed to a course of action, especially one that has worked well in the past, is
likely to make an executive miss signs of incipient trouble or misinterpret them when they do appear.
Pls throw some light on reasoning;)
I narrowed it down to answer choices (C) and (E).. I am unable to make up my mind between these 2 ! I am more inclined to (C) though..

Can't wait to know the actual answer..

give ans is E
Culd u pls explain the approach used.........
A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.
(A) A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,
(B) A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,
(C) A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,
(D) The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that
(E) The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,

Pls provide reasoning.....


Answer is E coz only a tree can be cultivated not its derivative.( which C suggests ) .
In Statement (A), there is a pronoun error in "makes it likely to.." - here, "it" must refer to the heavily committed executives and not the course of action.

In Statement (B), the word "likely" is not placed correctly in the sentence.

Statement (C) looks fine at first and might be a possible answer.. but the phrase "if it has worked well in the past" has been pushed to the end of the sentence causing some ambiguity. As this modifies "the course of action", it is best if it's placed right next to it - as in Statement (E).

In Statement (D), Executives' makes the sentence awkward. Also, there is parallel construction error at "miss signs of incipient trouble or misinterpreting them".
Statement (E) has no parallel construction, pronoun or modifier errors.

Pls correct me if i'm wrong!


give ans is E
Culd u pls explain the approach used.........
Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve metropolitan Boston.


  1. Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve
  2. Concerns about public health have led to the construction of three separate sewer systems between 1876 and 1904 to serve
  3. Concerns about public health have led between 1876 and 1904 to the construction of three separate sewer systems for serving
  4. There were concerns about public health leading to the construction between 1876 and 1904 of three separate sewer systems serving
  5. There were concerns leading between 1876 and 1904 to the construction of three separate sewer systems for serving


Correct Answer is A. Can anybody provide the explanation?

Thanks!!

Can anybody give the answers of these with explanation?

Q29:

For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle.


  1. each a roof of poles and arrowweed
  2. each a roof of poles and arrowweed that are being
  3. with each being a roof of poles and arrowweed
  4. with roofs of poles and arrowweed to be
  5. with roofs of poles and arrowweed that are

Answer:
------------------------------------------------------------------------------------------------------------
Q30:

For the first time in the modern era, non-Hispanic Whites are officially a minority in California, which amounts to a little less than half the population of the state, down from nearly there-quarters only a decade ago.


  1. which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago
  2. which amounts to a little less than half the population of the state, down from a decade ago, when it was nearly three-quarters
  3. and that amounts to a little less than half the population of the state, down from a decade ago, when they were nearly three-quarters
  4. amounting to a little less than half the population of the state, down from nearly three-quarters a decade ago
  5. amounting to a little less than half the population of the state, down from what it was a decade ago by nearly three-quarters

Answer:

Hi friends,

Can u kindly explain the error in option A ?
Thanks in advance

Can anybody give the answers of these with explanation?

Q29:

For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrowweed supported by posts set in a rectangle.


  1. each a roof of poles and arrowweed
  2. each a roof of poles and arrowweed that are being
  3. with each being a roof of poles and arrowweed
  4. with roofs of poles and arrowweed to be
  5. with roofs of poles and arrowweed that are

Answer:
------------------------------------------------------------------------------------------------------------
Q30:

For the first time in the modern era, non-Hispanic Whites are officially a minority in California, which amounts to a little less than half the population of the state, down from nearly there-quarters only a decade ago.


  1. which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago
  2. which amounts to a little less than half the population of the state, down from a decade ago, when it was nearly three-quarters
  3. and that amounts to a little less than half the population of the state, down from a decade ago, when they were nearly three-quarters
  4. amounting to a little less than half the population of the state, down from nearly three-quarters a decade ago
  5. amounting to a little less than half the population of the state, down from what it was a decade ago by nearly three-quarters

Answer:

My take
Q 29. A
Q30. D.

Will give my explanations if my response matches with OA.
Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve metropolitan Boston.


  1. Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve
  2. Concerns about public health have led to the construction of three separate sewer systems between 1876 and 1904 to serve
  3. Concerns about public health have led between 1876 and 1904 to the construction of three separate sewer systems for serving
  4. There were concerns about public health leading to the construction between 1876 and 1904 of three separate sewer systems serving
  5. There were concerns leading between 1876 and 1904 to the construction of three separate sewer systems for serving


Correct Answer is A. Can anybody provide the explanation?

Thanks!!

I would have gone for B. "concerns led to the construction betwween" seems awkward to me ? r u sure tht the answer is A ?
Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.
(A ) Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear. (B ) An executive who is heavily committed to a course of action, especially one that worked well in the past, makes missing signs of incipient trouble or misinterpreting ones likely when they do appear. (C ) An executive who is heavily committed to a course of action is likely to miss or misinterpret signs of incipient trouble when they do appear, especially if it has worked well in the past.
(D ) Executives being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to miss signs of incipient trouble or misinterpreting them when they do appear.
(E ) Being heavily committed to a course of action, especially one that has worked well in the past, is
likely to make an executive miss signs of incipient trouble or misinterpret them when they do appear.
Pls throw some light on reasoning;)

I would go with E.

A: It has no reference
B: Changes the meaning of the sentence
C: Wrong positioning of modifier
D: Illogical/awkward..whatever
E: I dont prefer "being". Here I am forced to (In the land of blinds, one eyed person is the king)
Hi friends,

Can u kindly explain the error in option A ?
Thanks in advance


Hi KngCat,

Is the answer (C)?

I think, option (A) is wrong because of its use of "who sided" which somewhat modifies "the league". it wud have been a good choise, if it had used "which sided". but, using "which sided" will change the meaning of the sentence itself :huh:

Therefore, i think, best bet is to go with option (C) which atleast reatins the meaning of the sentence.