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In some species of cricket, the number of chirps per minute

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In some species of cricket, the number of chirps per minute [#permalink]

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New post 27 May 2008, 20:26
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181. 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.
[Reveal] Spoiler: OA

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

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New post 27 May 2008, 20:49
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.
The number is singular so it does not agree with plural "rise" and "fall".

B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve
"which" is referring to temperature. Moreover "used...for attracting" is not the correct usage.

C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving.
The number is singular so it does not agree with plural "rise" and "fall".

D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
"It" does not have a clear referrent, "cricket or chirps".

E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.
This is proper case of subordination.

So Answer is E.

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

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New post 27 May 2008, 20:52
sondenso wrote:
181. 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.


The correct form to say is used...to do sth. So eliminate A, B, and C.
The it in D is unclear on what it is referring to.
E is the answer here.

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

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New post 28 May 2008, 18:19
D vs E.
As much as I dont like the phrase "in fact possibly" in E, E still nudges D out.

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

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New post 28 May 2008, 18:45
But I really shock when I see Oa is D :lol:
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Re: In some species of cricket, the number of chirps per minute [#permalink]

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New post 28 May 2008, 18:56
D because E change the meaning of the original sentence (in addition to being awkward)

can serve vs possibly serve

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

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New post 28 May 2008, 21:25
D would be the better choice since "and it can in fact serve" is more appropriate

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

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New post 28 May 2008, 21:33
Can you figure out to what "it" in D refer? "the male" or "the number of". Pronoun id nighmare for me! :lol:
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Re: In some species of cricket, the number of chirps per minute [#permalink]

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New post 28 May 2008, 21:42
sondenso wrote:
Can you figure out to what "it" in D refer? "the male" or "the number of". Pronoun id nighmare for me! :lol:


That is why non official questions are not useful, and often create more confusion than they are worth.

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

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New post 29 May 2008, 23:41
How about the answer B. Chirps should be referred with which instead of they, Is this logic proper...

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

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New post 30 May 2008, 00:04
Here number of chirps is referred to and number is a singular noun. so B is not appropriate. i will go for D.
manoj1123 wrote:
How about the answer B. Chirps should be referred with which instead of they, Is this logic proper...

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

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New post 20 Aug 2009, 13:24
Pls explain ... When can we used for and when can we use to like in the below example....
[Reveal] Spoiler:
OA:D

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

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New post 21 Aug 2009, 01:30
"the number of chirps per minute" is singular and so must be modified by "rises" and not "rise"

A) Incorrect - uses "rise" and not "rises"
B) Incorrect - ", which" is used to modify the noun directly in front of the comma. In this case that word is "temperature", but it should be referring to "number of chirps"
C) Incorrect - uses "rise" and not "rises"
D) Incorrect - "and it can in fact" is an ambiguous pronoun. "it" can refer to the number of chirps or the temperature.
E) Correct - uses "rises" correctly. Also, the construction of COMMA + -ING VERB can be used to construct a modifier phrase that modifies the entire clause proceeding it. In this case, "in fact possibly SERVING" is used to modify the entire modifier phrase starting with "used by...".

The COMMA + -ING VERB is a fairly common occurrence in the GMAT, and one that you should be on the lookout for.

For example:

"Crime was reduced in the neighborhood, which caused property values to rise." (INCORRECT)
", which" can only modify the noun directly in front of the comma. So in this case, it should be modifying "neighborhood". However, the neighborhood has not caused property values to rise.

Correct ways to fix this:

1. Make it so that the modifier correctly references "neighborhood".
"Crime was reduced in the neighborhood, which experienced higher property values." (Correct)

2. An -ing verb, unlike ", which" can be used to modify the entire phrase before it.
"Crime was reduced in the neighborhood, causing property values to rise." (Correct)

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

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New post 21 Aug 2009, 05:14
IMO normally, unless a idiom requires the use of FOR or TO, you use TO to express intend or objective
Consider the following example

I used the product FOR cleaning the motorcycle TO clean the car

The first part of the sentence uses FOR because the product is designed for cleaning motorcycles; however, if you are using the product in this particular case with the intention to clean the car, you use TO.

I don't know whether this is clear for you. My explanation is not really good, I hope someone can provide a better one.

IMO anyway for this problem you don't need to know this differences. I've noticed that sometimes GMAT uses this trick splitting answer choices that seem to test a concept (idiom), while you can eliminate part of the choices using other rules.

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

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New post 21 Aug 2009, 05:36
optiquezt wrote:
"the number of chirps per minute" is singular and so must be modified by "rises" and not "rise"

A) Incorrect - uses "rise" and not "rises"
B) Incorrect - ", which" is used to modify the noun directly in front of the comma. In this case that word is "temperature", but it should be referring to "number of chirps"
C) Incorrect - uses "rise" and not "rises"
D) Incorrect - "and it can in fact" is an ambiguous pronoun. "it" can refer to the number of chirps or the temperature.
E) Correct - uses "rises" correctly. Also, the construction of COMMA + -ING VERB can be used to construct a modifier phrase that modifies the entire clause proceeding it. In this case, "in fact possibly SERVING" is used to modify the entire modifier phrase starting with "used by...".

The COMMA + -ING VERB is a fairly common occurrence in the GMAT, and one that you should be on the lookout for.

For example:



"Crime was reduced in the neighborhood, which caused property values to rise." (INCORRECT)
", which" can only modify the noun directly in front of the comma. So in this case, it should be modifying "neighborhood". However, the neighborhood has not caused property values to rise.

Correct ways to fix this:

1. Make it so that the modifier correctly references "neighborhood".
"Crime was reduced in the neighborhood, which experienced higher property values." (Correct)

2. An -ing verb, unlike ", which" can be used to modify the entire phrase before it.
"Crime was reduced in the neighborhood, causing property values to rise." (Correct)




oa IS d:...

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

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New post 21 Aug 2009, 11:06
Can someone comes with convincing explanation that why E is wrong?

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

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New post 21 Aug 2009, 22:46
angel2009 wrote:
Can someone comes with convincing explanation that why E is wrong?


I think possibly & in fact can't come together...both are contradictory to each other...

In fact : in reality
possibly : of uncertain likeliood

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

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New post 05 Jan 2011, 13:37
gmatnub wrote:
sondenso wrote:
Can you figure out to what "it" in D refer? "the male" or "the number of". Pronoun id nighmare for me! :lol:


That is why non official questions are not useful, and often create more confusion than they are worth.


This is actually an official question from GMATPrep.

Could anybody explain why "it" in D is not ambiguous?

And aside from that: whats wrong with B and E?
Thanks.
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Re: In some species of cricket, the number of chirps per minute [#permalink]

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New post 05 Jan 2011, 13:42
ingoditrust wrote:
straight up D


Could anybody explain why "it" in D is not ambiguous?

And aside from that: whats wrong with B and E?
Thanks.
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Re: In some species of cricket, the number of chirps per minute [#permalink]

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New post 06 Nov 2011, 09:18
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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.


Pls discuss the answer.

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Re: In some species of cricket, the number of chirps per minute   [#permalink] 06 Nov 2011, 09:18

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