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While an extensive amount of research into the cause of acoustic neuro

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While an extensive amount of research into the cause of acoustic neuro  [#permalink]

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New post 03 Aug 2018, 00:02
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While an extensive amount of research into the cause of acoustic neuromas have proven unsuccessful, doctors have developed new surgical options that have dramatically increased patients' survival rates.


(A) amount of research into the cause of acoustic neuromas have proven unsuccessful

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

(D) cause research into acoustic neuromas has proven unsuccessful

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas

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While an extensive amount of research into the cause of acoustic neuro  [#permalink]

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New post 03 Aug 2018, 00:13
(A) amount of research into the cause of acoustic neuromas have proven unsuccessful

"amount is research" is singular and requires singular verb INCORRECT

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

"quantity is research" is singular and requires singular verb INCORRECT

(D) cause research into acoustic neuromas has proven unsuccessful

Meaning error. "extensive cause" modiefies meaning. INCORRECT

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas

The modifier "into the cause of acoustic neuromas" is placed far from "research" INCORRECT

Hence option B
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Re: While an extensive amount of research into the cause of acoustic neuro  [#permalink]

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New post 03 Aug 2018, 00:38
Bunuel wrote:
While an extensive amount of research into the cause of acoustic neuromas have proven unsuccessful, doctors have developed new surgical options that have dramatically increased patients' survival rates.


(A) amount of research into the cause of acoustic neuromas have proven unsuccessful

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

(D) cause research into acoustic neuromas has proven unsuccessful

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas


IMO B

(A) amount of research into the cause of acoustic neuromas have proven unsuccessful

Explanation - 'have' is wrong here. Singular verb 'has' required for singular subject research.

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful

Explanation - Only error of 'have' has been resolved here. It looks like the correct answer

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

Explanation - 'quantity' used for countable nouns whereas 'research' is uncountable.

(D) cause research into acoustic neuromas has proven unsuccessful

Explanation - Although the verb error of 'have' has been resolved here, but it changes the meaning of the sentence.

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas

Explanation - change of position has resulted into change of meaning of sentence.
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Re: While an extensive amount of research into the cause of acoustic neuro  [#permalink]

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New post 03 Aug 2018, 02:29
+1 for B.

(A) amount of research into the cause of acoustic neuromas have proven unsuccessful

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful --> Correct, rectifies Subject-Verb agreement error

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

(D) cause research into acoustic neuromas has proven unsuccessful

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas

Hence, B.
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While an extensive amount of research into the cause of acoustic neuro  [#permalink]

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New post 03 Aug 2018, 04:57
While an extensive amount of research into the cause of acoustic neuromas have proven unsuccessful, doctors have developed new surgical options that have dramatically increased patients' survival rates.


(A) amount of research into the cause of acoustic neuromas have proven unsuccessful

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful --> correct

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

(D) cause research into acoustic neuromas has proven unsuccessful

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas --> too far from "research"
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Re: While an extensive amount of research into the cause of acoustic neuro  [#permalink]

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New post 03 Aug 2018, 06:31
While an extensive amount of research into the cause of acoustic neuromas have proven unsuccessful, doctors have developed new surgical options that have dramatically increased patients' survival rates.


(A) amount of research into the cause of acoustic neuromas have proven unsuccessful - Amount is used for non-countable things and it is always singular

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful- Amount is used as singular and sentence has clear meaning

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful- Same as A

(D) cause research into acoustic neuromas has proven unsuccessful - awkward construction.. while and extensive cause research.....???

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas - meaning error.
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Re: While an extensive amount of research into the cause of acoustic neuro  [#permalink]

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New post 13 Aug 2018, 00:59
Bunuel wrote:
While an extensive amount of research into the cause of acoustic neuromas have proven unsuccessful, doctors have developed new surgical options that have dramatically increased patients' survival rates.


(A) amount of research into the cause of acoustic neuromas have proven unsuccessful

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

(D) cause research into acoustic neuromas has proven unsuccessful

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas


KAPLAN OFFICIAL EXPLANATION:



Once again we deal with the noun amount, but here it's the subject of the first part of the sentence. Since amount is singular, the verb needs to be has been, so you can eliminate (A) and (C). Amount of research is better than cause research (which makes no sense at any rate), leaving you with (B) and (E). (E) creates a misplaced modifier, so (B) is the correct choice.

An 800 test taker is aware that each wrong choice is usually wrong for more than one reason. If she doesn't know how to spot or correct one error, she looks for another one.
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New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
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Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: While an extensive amount of research into the cause of acoustic neuro &nbs [#permalink] 13 Aug 2018, 00:59
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