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OG 2018 New: Air traffic routes over the North Pole [#permalink]
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The Official Guide for GMAT Review 2018Practice QuestionSentence Correction Question No.: 674 Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year.
A. Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year. B. Currently used by only two or three planes a day, a joint Canadian–Russian study has found that if air traffic routes over the North Pole are opened to thousands more commercial planes a year, it would be both feasible and desirable. C. A joint Canadian–Russian study, finding it to be both feasible as well as desirable to open air traffic routes over the North Pole, which are currently used by only two or three planes a day, to thousands more commercial planes a year. D. Although air traffic routes over the North Pole are currently used by only two or three planes a day, a joint Canadian–Russian study has found that opening those routes to thousands more commercial planes a year is both feasible and desirable. E. With air traffic routes over the North Pole currently used by only two or three planes a day, opening those routes to thousands more commercial planes a year has been found by a joint Canadian—Russian study as both feasible and desirable
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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When dealing with fully underlined sentences such as this, try to identify a single error first to streamline the elimination process for maximum efficiency. In the sentence as written, the pronoun "it" is ambiguous because it lacks a clear antecedent. Eliminate A and look for any choices that also include ambiguous pronouns. Choices B and C also include the ambiguous or otherwise erroneous pronouns "it" and "which" that do not correctly and clearly refer to a prior subject. Eliminate B and C as well for their pronoun errors. Choice D properly orders the information in the sentence and eliminates the ambiguous pronouns. Choice E eliminates the main predicate phrasing of the sentence by omitting "are" and leaves it without a clear subject-verb pairing. It also includes the incorrect idiom "found... as", which should be "found... to be". Eliminate choice E. The correct answer is D.
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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01 Jul 2017, 08:21
question: is both A as well as B correct?
I eliminated A because of this.
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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01 Jul 2017, 20:16
sevenplusplus wrote: question: is both A as well as B correct?
I eliminated A because of this. Hi, Correct Idiom is both A and B . You can eliminate option A for this error.
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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02 Jul 2017, 07:50
look at choice e
do you think that in the pattern
with+noun+noun modifier+ main clause
the with-phrase can show a contrast with main clause? do you think so?
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year. A. Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year. Correct parallel market is BOTH X AND Y. BUT is used to show contradiction, but in this option such contradiction is not present. Hence Incorrect. B. Currently used by only two or three planes a day, a joint Canadian–Russian study has found that if air traffic routes over the North Pole are opened to thousands more commercial planes a year, it would be both feasible and desirable. What is "Currently used by only two or three planes"....? I guess answer has to be AIR TRAFFIC ROUTES. But in this option answer is "Canadian - Russian Study". Moreover, Antecedent of IT is not present. Hence Incorrect. C. A joint Canadian–Russian study, finding it to be both feasible as well as desirable to open air traffic routes over the North Pole, which are currently used by only two or three planes a day, to thousands more commercial planes a year. This sentence is a FRAGMENT. Correct parallel market is BOTH X AND Y. WHICH is modifying NORTH POLE, an incorrect use. Hence Incorrect. D. Although air traffic routes over the North Pole are currently used by only two or three planes a day, a joint Canadian–Russian study has found that opening those routes to thousands more commercial planes a year is both feasible and desirable. CORRECT E. With air traffic routes over the North Pole currently used by only two or three planes a day, opening those routes to thousands more commercial planes a year has been found by a joint Canadian—Russian study as both feasible and desirable Study found that opening those routes is feasible....- Correct since conveying original intent.
Study found opening is feasible....- Incorrect since it distorts original intent.
Hence INCORRECT
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OG 2018 New: Air traffic routes over the North Pole [#permalink]
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Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year.
A. Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year. "IT" cannot refer to plural "ROUTES" B. Currently used by only two or three planes a day, a joint Canadian–Russian study has found that if air traffic routes over the North Pole are opened to thousands more commercial planes a year, it would be both feasible and desirable. After the modifier "Currently used by ...", the subject which the modifier is modifying shall follow. C. A joint Canadian–Russian study, finding it to be both feasible as well as desirable to open air traffic routes over the North Pole, which are currently used by only two or three planes a day, to thousands more commercial planes a year. The Subject "A joint Canadian Russian Study" has NO verb at all ...Run on sentence. D. Although air traffic routes over the North Pole are currently used by only two or three planes a day, a joint Canadian–Russian study has found that opening those routes to thousands more commercial planes a year is both feasible and desirable. Perfect ..All subject verb pairs and the modifiers are highlighted in different colors. E. With air traffic routes over the North Pole currently used by only two or three planes a day, opening those routes to thousands more commercial planes a year has been found by a joint Canadian—Russian study as both feasible and desirable. A separate Character (Subject) with its separate story (verb) is required...the "with air traffic..." clause is in no justifies attaching of such additional information to the main clause. Refer this for more clarification : https://magoosh.com/gmat/2015/with-noun-participle-on-gmat-sentence-correction/
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OG 2018 New: Air traffic routes over the North Pole [#permalink]
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Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year.A. Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year. --- 1. Both as well as is a serious error; 2. If the conditional clause is in present tense, the main clause cannot be in past tense. B. Currently used by only two or three planes a day, a joint Canadian–Russian study has found that if air traffic routes over the North Pole are opened to thousands more commercial planes a year, it would be both feasible and desirable. --- Modification problem
C. A joint Canadian–Russian study, finding it to be both feasible as well as desirable to open air traffic routes over the North Pole, which are currently used by only two or three planes a day, to thousands more commercial planes a year. - A fragment D. Although air traffic routes over the North Pole are currently used by only two or three planes a day, a joint Canadian–Russian study has found that opening those routes to thousands more commercial planes a year is both feasible and desirable. ---- Error free E. With air traffic routes over the North Pole currently used by only two or three planes a day, opening those routes to thousands more commercial planes a year has been found by a joint Canadian—Russian study as both feasible and desirable-- The 'with' modifier clause, should be followed by the doer of the action, namely the Canadian- Russian study after the comma. As such, the modification is faulty.
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OG 2018 New: Air traffic routes over the North Pole [#permalink]
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25 Aug 2017, 23:29
Hi Experts GMATNinja GMATNinjaTwoI had slightly different approach to get to OA, and want to validate if its correct: (A) study to be both feasible as well as desirable seems incorrect when compared with :study is both feasible and desirable. the verb to + something denotes purpose and study in not performing a specific function here. I do not see issue with IT since it can be used as demonstrative pronoun for eg It is raining. Here there is no logical antecedent for IT (B) later part of sentence: it would be .. is not connected using FANBOYS connector (C) the phrase which are had SV no agreement since study (singular) requires singular verb : is currently used (D)correctly brings out contrast and opening those routes is subject for is both feasible and desirable, makes more sense than (A) (E) contrast is lost here.
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year.A. Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year. A is out because the phrase "desirable if those routes are opened" should read "desirable that those routes are opened. The former suggests that something is desirable only if the routes are opened.
B. Currently used by only two or three planes a day, a joint Canadian–Russian study has found that if air traffic routes over the North Pole are opened to thousands more commercial planes a year, it would be both feasible and desirable. B is wrong because it suggests the study is used by only two or three planes a day. C. A joint Canadian–Russian study, finding it to be both feasible as well as desirable to open air traffic routes over the North Pole, which are currently used by only two or three planes a day, to thousands more commercial planes a year. C contains a dangling modifier, "which are currently used by only two or three planes a day." It is dangling because it is separated from the study that it modifies.D. Although air traffic routes over the North Pole are currently used by only two or three planes a day, a joint Canadian–Russian study has found that opening those routes to thousands more commercial planes a year is both feasible and desirable. D is the best only because the rest are not. The opening word "although" has nothing to do with the fact that a joint study reached a finding. Instead, there should be and "and" after "a day...."
E. With air traffic routes over the North Pole currently used by only two or three planes a day, opening those routes to thousands more commercial planes a year has been found by a joint Canadian—Russian study as both feasible and desirable E is a sentence expressed in the passive voice, always to be avoided, and in this case, awkwardly so.
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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though the sentence is underlined, the same method is applied. first, try to realize grammatical roles of each phrase when you read. immediately, when you see any grammatical role not logic, you find an error. good knowledge of grammar patterns and a sense of logic is required.
apply above rule
read choice a. at first , we see "it" is not clear. "it is found to be" is good pattern if "it" is real subject, not fake subject. for example,
the cup is good. it is found useful.
if "it" is fake subject. we have only following pattern " it is found that".
for example,
it is found that he get very good score on gmat.
so, when we see "it" in choice a, we have to know two patterns with "it" (very good grammar is required). then , we see "it" has some problem.
above process is basic to read a choice.
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OG 2018 New: Air traffic routes over the North Pole [#permalink]
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27 Nov 2017, 16:00
AbdurRakib wrote: Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year.
A. Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year. The correct idiom is BOTH X AND Y ELIMINATE B. Currently used by only two or three planes a day ( hmmm, WHAT is used by only two or three planes a day?), a joint Canadian–Russian study ( a joint study was used by two or three planes a day?? THIS MAKES NO SENSE) has found that if air traffic routes over the North Pole are opened to thousands more commercial planes a year, it would be both feasible and desirable. ELIMINATE C. A joint Canadian–Russian study, finding it to be both feasible as well as desirable to open air traffic routes over the North Pole, which are currently used by only two or three planes a day, to thousands more commercial planes a year. The correct idiom is BOTH X AND Y ELIMINATE D. Although air traffic routes over the North Pole are currently used by only two or three planes a day, a joint Canadian–Russian study has found that opening those routes to thousands more commercial planes a year is both feasible and desirable. E. With air traffic routes over the North Pole currently used by only two or three planes a day, opening those routes to thousands more commercial planes a year has been found by a joint Canadian—Russian study as both feasible and desirable . . . has been found AS is unidiomatic (should be FOUND TO BE) ELIMINATE Answer: D ASIDE: In many cases, an incorrect answer choice has several issues. I have just pointed out one issue.
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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AbdurRakib wrote: The Official Guide for GMAT Review 2018Practice QuestionSentence Correction Question No.: 674 Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year.
A. Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year. B. Currently used by only two or three planes a day, a joint Canadian–Russian study has found that if air traffic routes over the North Pole are opened to thousands more commercial planes a year, it would be both feasible and desirable. C. A joint Canadian–Russian study, finding it to be both feasible as well as desirable to open air traffic routes over the North Pole, which are currently used by only two or three planes a day, to thousands more commercial planes a year. D. Although air traffic routes over the North Pole are currently used by only two or three planes a day, a joint Canadian–Russian study has found that opening those routes to thousands more commercial planes a year is both feasible and desirable. E. With air traffic routes over the North Pole currently used by only two or three planes a day, opening those routes to thousands more commercial planes a year has been found by a joint Canadian—Russian study as both feasible and desirable A. Use of "as well as" is incorrect with "both". Both should be followed by "and"; both x and y B. "A joint Canadian–Russian study" is not being used by two or three planes. Comma should be followed by "air traffic routes". C. Same as A. D. Correct E. We don't need a present perfect tense.
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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20 Feb 2018, 19:44
sevenplusplus wrote: question: is both A as well as B correct?
I eliminated A because of this. You are correct; I eliminated A for that very reason. The correct idiom should be "both A and B"
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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06 Mar 2018, 02:46
elegantm wrote: Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year.
A. Air traffic routes over the North Pole are currently used by only two or three planes a day, but it was found by a joint Canadian–Russian study to be both feasible as well as desirable if those routes are opened to thousands more commercial planes a year.
Correct parallel market is BOTH X AND Y. BUT is used to show contradiction, but in this option such contradiction is not present. Hence Incorrect.
B. Currently used by only two or three planes a day, a joint Canadian–Russian study has found that if air traffic routes over the North Pole are opened to thousands more commercial planes a year, it would be both feasible and desirable.
What is "Currently used by only two or three planes"....? I guess answer has to be AIR TRAFFIC ROUTES. But in this option answer is "Canadian - Russian Study". Moreover, Antecedent of IT is not present. Hence Incorrect.
C. A joint Canadian–Russian study, finding it to be both feasible as well as desirable to open air traffic routes over the North Pole, which are currently used by only two or three planes a day, to thousands more commercial planes a year.
This sentence is a FRAGMENT. Correct parallel market is BOTH X AND Y. WHICH is modifying NORTH POLE, an incorrect use. Hence Incorrect.
D. Although air traffic routes over the North Pole are currently used by only two or three planes a day, a joint Canadian–Russian study has found that opening those routes to thousands more commercial planes a year is both feasible and desirable.
CORRECT
E. With air traffic routes over the North Pole currently used by only two or three planes a day, opening those routes to thousands more commercial planes a year has been found by a joint Canadian—Russian study as both feasible and desirable
Study found that opening those routes is feasible....- Correct since conveying original intent.
Study found opening is feasible....- Incorrect since it distorts original intent.
Hence INCORRECT In my opinion, COMMA + WHICH is correctly placed here and refers back to "air traffic routes" AND NOT "the North Pole" because "the North Pole" is the object of preposition "over the North Pole" and therefore, is not the closest preceding main noun. Please tell me whether I am right or wrong.
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Re: OG 2018 New: Air traffic routes over the North Pole [#permalink]
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parthjain68 wrote:
In my opinion, COMMA + WHICH is correctly placed here and refers back to "air traffic routes" AND NOT "the North Pole" because "the North Pole" is the object of preposition "over the North Pole" and therefore, is not the closest preceding main noun.
Please tell me whether I am right or wrong.
Hi parthjain68, which can refer to object of preposition. There are numerous such official questions. For example: The commission proposed that funding for development of the park, which could be open to the public early next year, be obtained through a local bond issue. Here, which refers to park (park is the object of preposition of in this example). However, in the sentence under consideration, which cannot modify North Pole because the sentence says which are. So, which can only modify a plural Noun in this sentence. p.s. Our book EducationAisle Sentence Correction Nirvana discusses modifier concepts of which, their application and examples in significant detail. If someone is interested, PM me your email-id; I can mail the corresponding section.
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Re: OG 2018 New: Air traffic routes over the North Pole
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