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Many of today’s mathematicians use computers to test cases that are ei

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Re: Many of today’s mathematicians use computers to test cases that are ei  [#permalink]

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New post 29 Oct 2019, 06:18
sivasanjeev wrote:
Many of today’s mathematicians use computers to test cases that are either too time-consuming or involve too many variables to test manually, allowing the exploration of theoretical issues that were impossible to test a generation ago

a) are either too time-consuming or involve too many variables to test manually, allowing the exploration of
Either ... or construction is a parallel marker. 'Or' is followed by a verb and hence, 'either' too should. Because the helping verb 'are' is used before either, this option is wrong.

At an advanced level, 'exploration of' usage is wrong too. Because, participle 'allowing' is modifying the entire clause and we don't know who is doing the 'exploration'. A preferred construction would be 'allowing X to explore ....'. Verb form is preferred over noun form.

b) either take too much time or involve too many variables to be tested manually; allowing the mathematicians to explore
The part of the sentence after the 'semicolon' is not a clause. Eliminate B.

c) would either take too much time or involve too many variables to test manually, allowing them to explore
Errors mentioned in A are corrected here.

d) would either be too time-consuming or would involve too many variables to test manually; this capability allows the mathematicians to explore
'or' is followed by 'would' and so should 'either' be.
Also, 'this' doesn't have a clear referent. Ask yourself, 'this capability' means 'which capability' ??

e) take too much time or variables to test manually; this capability allows the mathematicians to explore
'or' is the parallel marker - 'take too much' and 'variables to test' are not parallel. 'this' doesn't have a clear referent.


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Re: Many of today’s mathematicians use computers to test cases that are ei  [#permalink]

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New post 29 Oct 2019, 06:19
sivasanjeev wrote:
Many of today’s mathematicians use computers to test cases that are either too time-consuming or involve too many variables to test manually, allowing the exploration of theoretical issues that were impossible to test a generation ago

a) are either too time-consuming or involve too many variables to test manually, allowing the exploration of
Either ... or construction is a parallel marker. 'Or' is followed by a verb and hence, 'either' too should. Because the helping verb 'are' is used before either, this option is wrong.

At an advanced level, 'exploration of' usage is wrong too. Because, participle 'allowing' is modifying the entire clause and we don't know who is doing the 'exploration'. A preferred construction would be 'allowing X to explore ....'. Verb form is preferred over noun form.

b) either take too much time or involve too many variables to be tested manually; allowing the mathematicians to explore
The part of the sentence after the 'semicolon' is not a clause. Eliminate B.

c) would either take too much time or involve too many variables to test manually, allowing them to explore
Errors mentioned in A are corrected here.

d) would either be too time-consuming or would involve too many variables to test manually; this capability allows the mathematicians to explore
'or' is followed by 'would' and so should 'either' be.
Also, 'this' doesn't have a clear referent. Ask yourself, 'this capability' means 'which capability' ??

e) take too much time or variables to test manually; this capability allows the mathematicians to explore
'or' is the parallel marker - 'take too much' and 'variables to test' are not parallel. 'this' doesn't have a clear referent.


Option C have ambiguity of 'them' that could refer computers or mathematicians so option C does not seem correct to me, please help if I am missing anything here?

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Re: Many of today’s mathematicians use computers to test cases that are ei  [#permalink]

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New post 28 Feb 2020, 04:14
GMATNinjaTwo, GMATNinja
dear experts,
I crossed off C because the word "would"
IMO, "either take too much time or involve too many variables to test manually" is ACTUAl, is a fact
"would" implies the very possibility.

but OA is C, so I must misunderstand, but I have no idea.

please help elaborate further.

thanks in advance.
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Re: Many of today’s mathematicians use computers to test cases that are ei  [#permalink]

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New post 28 May 2020, 04:54
djanand wrote:
Many of today’s mathematicians use computers to test cases that are either too time-consuming or involve too many variables to test manually, allowing the exploration of theoretical issues that were impossible to test a generation ago


(A) are either too time-consuming or involve too many variables to test manually, allowing the exploration of

(B) either take too much time or involve too many variables to be tested manually; allowing the mathematicians to explore

(C) would either take too much time or involve too many variables to test manually, allowing them to explore

(D) would either be too time-consuming or would involve too many variables to test manually; this capability allows the mathematicians to explore

(E) take too much time or variables to test manually; this capability allows the mathematicians to explore


GMATNinja MentorTutoring

Explanation of Questions i have encountered till now force me to not to change the intended meaning of the sentence.
But here in option C, use of "would" changes the meaning of original sentence.

Kindly explain the above paradox.
Are these situations can appear in official questions also ?
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Many of today’s mathematicians use computers to test cases that are ei  [#permalink]

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New post 28 May 2020, 08:33
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Harsh2111s wrote:
djanand wrote:
Many of today’s mathematicians use computers to test cases that are either too time-consuming or involve too many variables to test manually, allowing the exploration of theoretical issues that were impossible to test a generation ago


(A) are either too time-consuming or involve too many variables to test manually, allowing the exploration of

(B) either take too much time or involve too many variables to be tested manually; allowing the mathematicians to explore

(C) would either take too much time or involve too many variables to test manually, allowing them to explore

(D) would either be too time-consuming or would involve too many variables to test manually; this capability allows the mathematicians to explore

(E) take too much time or variables to test manually; this capability allows the mathematicians to explore


GMATNinja MentorTutoring

Explanation of Questions i have encountered till now force me to not to change the intended meaning of the sentence.
But here in option C, use of "would" changes the meaning of original sentence.

Kindly explain the above paradox.
Are these situations can appear in official questions also ?

Hello, Harsh2111s. There is a myth that surrounds the original sentence, namely that it is the one that displays the intended meaning, that all the other answer choices must reflect it. If such were the case, then there would be a lot more correct (A) answers, I can assure you. The only parts of the original sentence that you cannot negotiate are those in the non-underlined portion. In the sentence at hand, it could be the case that the sentence could adopt either the present or present conditional forms. There are issues, however, that prevent us from choosing any of the answers that adopt the present-tense versions in (A), (B), or (E), as others have noted above, even if (B), in my mind, comes close. One could argue that the sentence is intending to say that mathematicians are not downing time on these cases, so the conditional tense is necessary. But I would say that the use of many at the head of the sentence precludes such a definitive argument. If many, but not all, mathematicians use computers to test certain cases, then the process may very well be too time-consuming for those who are doing it the old-fashioned way, and it could be this group of mathematicians the sentence was referring to, by way of comparison.

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Re: Many of today’s mathematicians use computers to test cases that are ei  [#permalink]

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New post 28 May 2020, 17:19
Here I have a reservation about use of Ving modifier.

Case-1
V+ing ......, clause.
Here V+ing modifier will modify the subject only.
Ex. Pointing his finger towards moon, He said that one day he would be there as an astronaut.

Case-2
Clause, V+ing.....
Here V+ing modifier modifies the preceding clause.
As in given problem.

Is my understanding correct?

chetan2u wrote:
Aves wrote:
I have a question.

1) Which noun is the subject of the action 'allow'? cases or mathematicians?

Both of them don't make sense in my opinion. It should be the computers.

And the modifier will be like this

"the computers allow today's mathematicians to explore theoretical issues that were impossible to test a generation ago."

Am I right?


Hi,

allowing is the VERB +ING modifier and does not modify ant particlar NOUN.
It modifies the preceding clause..


here it is talking of the result of previous clause --Many of today’s mathematicians use computers to test cases
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Re: Many of today’s mathematicians use computers to test cases that are ei  [#permalink]

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New post 28 May 2020, 19:09
gvij2017 wrote:
Here I have a reservation about use of Ving modifier.

Case-1
V+ing ......, clause.
Here V+ing modifier will modify the subject only.
Ex. Pointing his finger towards moon, He said that one day he would be there as an astronaut.

Case-2
Clause, V+ing.....
Here V+ing modifier modifies the preceding clause.
As in given problem.

Is my understanding correct?

chetan2u wrote:
Aves wrote:
I have a question.

1) Which noun is the subject of the action 'allow'? cases or mathematicians?

Both of them don't make sense in my opinion. It should be the computers.

And the modifier will be like this

"the computers allow today's mathematicians to explore theoretical issues that were impossible to test a generation ago."

Am I right?


Hi,

allowing is the VERB +ING modifier and does not modify ant particlar NOUN.
It modifies the preceding clause..


here it is talking of the result of previous clause --Many of today’s mathematicians use computers to test cases



Yes, you are correct. Add to it that without comma the verb+ing modifier modifiers preceding noun.
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Re: Many of today’s mathematicians use computers to test cases that are ei   [#permalink] 28 May 2020, 19:09

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