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QOTD: In some species of cricket, the number of chirps

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Verbal Question of The Day: Day 38: Sentence Correction


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In some species of cricket, the number of chirps per minute used by the male for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve as an approximate thermometer.

A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve.
B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve
C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving.
D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

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QOTD: In some species of cricket, the number of chirps [#permalink]

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Interesting question, right? All sorts of funky stuff going on here with meaning and pronouns.

For those of you who missed it, we went through this question in our live YouTube session this past Monday. The video is available here.

Quote:
A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve.

The nice thing about (A) is that the subject-verb agreement is clearly wrong. "The number of chirps per minute... rise and fall." No reason to overthink this one. (A) is gone.

Quote:
B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve

Subject-verb agreement looks fine here, but "which" seems to modify temperature, and that doesn't make sense. The temperature can serve as a thermometer? That's messed up. Eliminate (B).

Quote:
C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving.

Same subject-verb error as in (A), so (C) is gone, too.

Quote:
D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.

Heh heh, here's where it gets interesting. :twisted:

Let's talk about the pronoun "it". On the face of things, it looks like "it" could refer back to temperature (the nearest singular noun), and that's illogical. If we reach further back, "it" could refer to "male", "minute", "number", or "cricket." So it's ambiguous, right?

Nope! Notice that "it" is the subject of a dependent clause -- the second clause in the sentence. What's the subject of the first (independent) clause? "The number", or "the number of chirps per minute." And the GMAT is weirdly consistent about this: if a sentence contains two clauses (either one dependent and one independent, or two independent clauses) and the second clause starts with a pronoun, then the pronoun can refer unambiguously to the subject of the first clause.

So "it" refers to "the number of chirps per minute", without any trouble at all. Let's keep (D).

Quote:
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

Hm, nothing looks wrong here grammatically. If I'm being honest, I'd keep (E), too.

Now let's compare those last two:

    D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
    E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

These two are identical, other than the last little bit of the underlined portion. And there's a subtle little meaning difference between these two. (D) is saying that the "number of chirps per minute" CAN serve as a thermometer if you wanted it to. (E) is saying that the number of chirps "in fact" (="definitely") "possibly" (≠"definitely) serves as a thermometer. And that's nonsense: how can something "in fact" and "possibly" serve as a thermometer?

That's subtle, but enough to make (D) the right answer.
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QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 21 Jun 2017, 12:24
souvik101990 wrote:

Verbal Question of The Day: Day 38: Sentence Correction


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In some species of cricket, the number of chirps per minute used by the male for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve as an approximate thermometer.

A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve.
B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve
C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving.
D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.



Answer should be D

The expression here should be "to attract". Hence option A, B & C can be eliminated.
"the number of..." is singular, hence we need "rises" & "falls" and "it" to refer "the number of chirps". Hence E can be eliminated

Last edited by niks18 on 22 Jun 2017, 07:50, edited 1 time in total.

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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In some species of cricket, the number of chirps (Singular Subject) per minute used by the male for attracting (Wrong Idiom: use 'TO' to express intend or objective) females rise and fall (Plural Verb: S-V disagreement) in accordance with the surrounding temperature, and they (Unclear Antecedent: the number of chirps ? should be IT) can in fact serve as an approximate thermometer.

A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve.
B. for attracting (Wrong Idiom) females rises and falls in accordance with the surrounding temperature, which (Refers to temperature - changes the meaning of original sentence) can in fact serve
C. in attracting (Wrong Idiom) females rise and fall (Plural Verb: S-V disagreement) in accordance with the surrounding temperature, in fact possibly serving (Verb + ing modifier: Can modify preceding clause, preceding noun, or even the subject of the preceding clause. Qualifies 'the number of chirps'? or 'surrounding temperature'? or entire clause ?)
D. to attract (Correct Idiom) females rises and falls (Singular Verb) in accordance with the surrounding temperature, and it (Keeps ||ism intact with 'the number of chirps' - singular subject) can in fact serve. - Best choice
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving (Verb + ing modifier: Can modify preceding clause, preceding noun, or even the subject of the preceding clause. Qualifies 'the number of chirps'? or 'surrounding temperature'? or entire clause ?)
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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 21 Jun 2017, 18:25
Option D

A)use of they - is wrong - refers to The number
B)use of which is wrong
C) used in is wrong
E) changes the meaning, the no.of chirps does not serve as a thermometer (it can serve as a thermometer probably in combination with some other thing)

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 21 Jun 2017, 18:40
D...number of chirps is singular, hence rises and falls is used...also pronoun 'IT' refers correctly to number of chirps

In some species of cricket, the number of chirps per minute used by the male for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve as an approximate thermometer.

A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve.
B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve
C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving.
D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 21 Jun 2017, 18:48
Please explain what is wrong in option E and whats correct in option D

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 21 Jun 2017, 18:53
souvik101990 wrote:

Verbal Question of The Day: Day 38: Sentence Correction


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In some species of cricket, the number of chirps per minute used by the male for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve as an approximate thermometer.

A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve.
B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve
C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving.
D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

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Analysis:
Option A- Incorrect because of subject-verb error.
Option B- Incorrect because which refers to temperature. The temperature can't serve as thermometer.
Option C-Incorrect because of subject-verb error.
Option D- it refers to the number of chirps. But is the number of chirps acting as a thermometer.
Option E-Correct The entire act is referred to as thermometer.

IMO E

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 21 Jun 2017, 21:04
E is not grammatically wrong but logically falls apart when we try to disect the meaning. Possibly serving -- The number of chirps used by... is serving as blah blah. . damn this is illogical.
The number - singular. intention is shown . so to attract is better. :)
So Answer should be D.

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 21 Jun 2017, 21:18
I would say D for using "to attract" and it after the comma is concise and refers correctly to temperature

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QOTD: In some species of cricket, the number of chirps [#permalink]

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harikrish wrote:
Please explain what is wrong in option E and whats correct in option D


E has 2 problems:

1. "In fact" and "possibly" are contradictory. "In fact" implies "definitely true" - something cannot be "definitely" and "possibly" true at the same time. Therefore E is wrong.

2. Moreover, even if the phrase "in fact" is ignored, the meaning implied by E would be that the number of chirps per minute possibly serves as an approximate thermometer already, not that it CAN be served as an approximate thermometer.

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 22 Jun 2017, 07:06
Answer is D
to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
Number of is singular and objet in prepositional phrases can not be the subject of the sentence
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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 22 Jun 2017, 07:22
sayantanc2k wrote:
harikrish wrote:
Please explain what is wrong in option E and whats correct in option D


E has 2 problems:

1. "In fact" and "possibly" are contradictory. "In fact" implies "definitely true" - something cannot be "definitely" and "possibly" true at the same time. Therefore E is wrong.

2. Moreover, even if the phrase "in fact" is ignored, the meaning implied by E would be that the number of chirps per minute possibly serves as an approximate thermometer already, not that it CAN be served as an approximate thermometer.



Thanks , as always your explanation is so clear and concise :-)
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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 22 Jun 2017, 07:24
D

Used to makes sense
And it narrows down to e and D

D makes more sense in meaning

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 24 Jun 2017, 16:35
From a PM:

Quote:
@GMATNinja: In D, the usage of "CAN" also, I guess, adds the aspect of possibility. Isn't it ?

So, considering this aspect in the OA, how we can really say that "in fact" and "possibly" in E are actually distorting the intended meaning of this SC ? (Because the sense of possibility seems to be conveyed through the usage of "CAN" in the OA as well)

Thoughts ?

"Can" isn't the same thing as "possibly." "Can" indicates potential or ability -- so in (D), the number of chirps has the ability to serve as a thermometer. And it's reasonable enough to say that it does, "in fact", have that ability. "Possibly" simply indicates that we don't really know whether something is actually occurring; it says nothing about ability or potential.

So (E) is saying something slightly different from (D): the number of chirps is "in fact possibly serving" as an approximate thermometer. And that's muddier, as described in both my explanation and in sayantanc2k's above.
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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 24 Jun 2017, 21:24
In some species of cricket, the number of chirps per minute used by the male for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve as an approximate thermometer.

A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve. -Subject-verb agreement issue - the number is singular and needs singular verb
B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve - usage of which to modify temperature is incorrect
C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving. -Subject-verb agreement issue - the number is singular and needs singular verb
D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve. - Correct
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving. - illogical meaning

Answer D
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QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 26 Jun 2017, 23:13
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GMATNinja wrote:
From a PM:

Quote:
@GMATNinja: In D, the usage of "CAN" also, I guess, adds the aspect of possibility. Isn't it ?

So, considering this aspect in the OA, how we can really say that "in fact" and "possibly" in E are actually distorting the intended meaning of this SC ? (Because the sense of possibility seems to be conveyed through the usage of "CAN" in the OA as well)

Thoughts ?

"Can" isn't the same thing as "possibly." "Can" indicates potential or ability -- so in (D), the number of chirps has the ability to serve as a thermometer. And it's reasonable enough to say that it does, "in fact", have that ability. "Possibly" simply indicates that we don't really know whether something is actually occurring; it says nothing about ability or potential.

So (E) is saying something slightly different from (D): the number of chirps is "in fact possibly serving" as an approximate thermometer. And that's muddier, as described in both my explanation and in sayantanc2k's above.


GMATNinja,
It seems to me that your above explanation holds fine as long as we restrict the meaning of "Can" to potential or ability. However, per the Oxford Dictionary, I think,"Can" could also denote possibility. So, how we can completely ignore that implication ?

Please clarify. Thanks!
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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 03 Aug 2017, 08:31
GMATNinja wrote:
Interesting question, right? All sorts of funky stuff going on here with meaning and pronouns.

For those of you who missed it, we went through this question in our live YouTube session this past Monday. The video is available here.

Quote:
A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve.

The nice thing about (A) is that the subject-verb agreement is clearly wrong. "The number of chirps per minute... rise and fall." No reason to overthink this one. (A) is gone.

Quote:
B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve

Subject-verb agreement looks fine here, but "which" seems to modify temperature, and that doesn't make sense. The temperature can serve as a thermometer? That's messed up. Eliminate (B).

Quote:
C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving.

Same subject-verb error as in (A), so (C) is gone, too.

Quote:
D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.

Heh heh, here's where it gets interesting. :twisted:

Let's talk about the pronoun "it". On the face of things, it looks like "it" could refer back to temperature (the nearest singular noun), and that's illogical. If we reach further back, "it" could refer to "male", "minute", "number", or "cricket." So it's ambiguous, right?

Nope! Notice that "it" is the subject of a dependent clause -- the second clause in the sentence. What's the subject of the first (independent) clause? "The number", or "the number of chirps per minute." And the GMAT is weirdly consistent about this: if a sentence contains two clauses (either one dependent and one independent, or two independent clauses) and the second clause starts with a pronoun, then the pronoun can refer unambiguously to the subject of the first clause.

So "it" refers to "the number of chirps per minute", without any trouble at all. Let's keep (D).

Quote:
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

Hm, nothing looks wrong here grammatically. If I'm being honest, I'd keep (E), too.

Now let's compare those last two:

    D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
    E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

These two are identical, other than the last little bit of the underlined portion. And there's a subtle little meaning difference between these two. (D) is saying that the "number of chirps per minute" CAN serve as a thermometer if you wanted it to. (E) is saying that the number of chirps "in fact" (="definitely") "possibly" (≠"definitely) serves as a thermometer. And that's nonsense: how can something "in fact" and "possibly" serve as a thermometer?

That's subtle, but enough to make (D) the right answer.



Isn't ''used for'' wrong in A,B,C? I found that this is wrong in a file, perhaps compiled by carcass , containing 100 hard SC ques from OG and Manhattan.

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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 03 Aug 2017, 15:49
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rma26 wrote:

Isn't ''used for'' wrong in A,B,C? I found that this is wrong in a file, perhaps compiled by carcass , containing 100 hard SC ques from OG and Manhattan.



Hello rma26,

I will be glad to help you out with this one. :-)

As such the phrase used for is not incorrect.

However, in this official sentence, we need the phrase to attract to show why male crickets use their chirps in a certain manner. Hence use of for attracting is not correct.

Hope this helps. :-)
Thanks.
Shraddha
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Re: QOTD: In some species of cricket, the number of chirps [#permalink]

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New post 04 Aug 2017, 03:26
this is not from og or gmatprep, so, I will not study this question carefully.
I will not consider why e is wrong and why "used for doing" is wrong.

sc is so special that even formal explanation in og books is not good enough. we should focus on og questions . doing sc problems from other sources is for practice only.

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Re: QOTD: In some species of cricket, the number of chirps   [#permalink] 04 Aug 2017, 03:26

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