Sentence Correction

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.

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.

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!

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

my doubt :i somehow feel that above sentence is a run on
i feel that in the initial clause "that" is missing and without that "that" the sentence is a run on


i feel that were the sentence as follows then the sentence wud have been oki

In order to conserve the energy and heat that they need to spend the entire winter sitting motionless over incubating eggs, male emperor penguins huddle over the nests in groups......

instructors kindly help

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

I can not accept choice A until I find the clear errors in other choices. I want to say some words on choice a.
look at A
I want to show that some time we use "it/they" , other time we use "that/those" to make comparison. normally, "that/those" is used and "it/they" is seldom used. and some time we use Zero "that/those" and Zero "it/they"
"it is" refers to " rate at which they burn energy".
here "rate at which they burn energy" is general phrase. now, we attache "when they huddle" and "when they are isolated" to "rate at which they burn energy".
"the rate at which they burn energy" when they huddle is lower than that at which they burn energy when they are isolated"
this is good. but we need "that" to say about different rate in different condition. we are comparing two rates.
if we want to use "it", we make comparison in which the same rate happen in 2 contexts.
the rate at which they burn energy now is lower than it would be for isolated birds.
than it would be when they are huddle.

these sentence are good. but no parallelism is required.
if we use "that/those", parallelism is require. if we use "it/they" , no parallelism is required. this is FORMULAR

GMATGuruNY wrote: ↑

Sun Aug 28, 2016 3:20 am

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.