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In order to conserve the energy and heat

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GMAT/MBA Expert

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richachampion wrote:
I wanted to discuss this question in the light of the idiom Compared to or Compared with.

I think both compared to/compared with is right in GMAT, but

X compared to/with Y. Here X and Y should show some sort of statistics, Right? Please shower some light.
For the purposes of the GMAT, consider compared to and compared with interchangeable.
While these phrases often refer to statistical differences, the inclusion of actual numbers is not required.
An OA in GMATPrep:
Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less, get better gas mileage, allow passengers to get in and out more easily, and have a smoother ride.
Here, no numbers are included in the portion in blue.

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Senior | Next Rank: 100 Posts Default Avatar
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Posted:
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A)thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for - correct
B)thereby reducing their rate of burning energy until it is 25 percent lower when compared with - lower and compared- redundant
C)and they thereby reduce by 25 percent the rate they burn energy, as compared to what it would be with - wrong comparison due to use of with
D)which thereby reduces by 25 percent their rate of burning energy, when comparing them to - them cant refer to rate
E)which thereby reduces the rate they burn energy so that it is 25 percent lower than - rate compared with birds

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Junior | Next Rank: 30 Posts
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17 Dec 2015
Posted:
21 messages
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GMATGuruNY wrote:
aditya8062 wrote:
In order to conserve the energy and heat they need to spend the entire winter sitting motionless over incubating eggs, male emperor penguins huddle over the nests in groups, thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for isolated birds.

A)thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for
B)thereby reducing their rate of burning energy until it is 25 percent lower when compared with
C)and they thereby reduce by 25 percent the rate they burn energy, as compared to what it would be with
D)which thereby reduces by 25 percent their rate of burning energy, when comparing them to
E)which thereby reduces the rate they burn energy so that it is 25 percent lower than
B: lower when compared with
Here, lower and compared are redundant.
The correct idiom is lower than.
Eliminate B.

C: the rate [that] they burn
Here, the word in brackets is omitted but implied.
The conveyed meaning is that the RATE is burned.
This meaning is nonsensical.
Eliminate C.

D and E: male emperor penguins huddle over the nests in groups, which thereby reduces
Here, which reduces lacks a singular antecedent.
Eliminate D and E.

The correct answer is A.
The pronoun "it" in answer choice A couldn't be considered ambiguous? Energy or Rate

Tks! Smile

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GMAT/MBA Expert

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gui_guimaraes wrote:
GMATGuruNY wrote:
aditya8062 wrote:
In order to conserve the energy and heat they need to spend the entire winter sitting motionless over incubating eggs, male emperor penguins huddle over the nests in groups, thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for isolated birds.

A)thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for
B)thereby reducing their rate of burning energy until it is 25 percent lower when compared with
C)and they thereby reduce by 25 percent the rate they burn energy, as compared to what it would be with
D)which thereby reduces by 25 percent their rate of burning energy, when comparing them to
E)which thereby reduces the rate they burn energy so that it is 25 percent lower than
B: lower when compared with
Here, lower and compared are redundant.
The correct idiom is lower than.
Eliminate B.

C: the rate [that] they burn
Here, the word in brackets is omitted but implied.
The conveyed meaning is that the RATE is burned.
This meaning is nonsensical.
Eliminate C.

D and E: male emperor penguins huddle over the nests in groups, which thereby reduces
Here, which reduces lacks a singular antecedent.
Eliminate D and E.

The correct answer is A.
The pronoun "it" in answer choice A couldn't be considered ambiguous? Energy or Rate

Tks! Smile
A: reducing the rate at which they burn energy so that it is 25 percent lower
Since the penguins are REDUCING THE RATE, we know from context that it refers to the rate, conveying that THE RATE is lower.
Regardless, an answer choice may be eliminated for pronoun ambiguity only if an alternate answer choice avoids the ambiguity and is free of errors.
Here, B, C, D and E are all incorrect for the various reasons discussed above.
Thus, the correct answer must be A.

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GMATGuruNY@gmail.com

If you find one of my posts helpful, please take a moment to click on the "UPVOTE" icon.

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For more information, please email me at GMATGuruNY@gmail.com.
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