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# The brightness on Earth

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Retired Moderator
Status: worked for Kaplan's associates, but now on my own, free and flying
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25 Oct 2015, 20:05
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Difficulty:

45% (medium)

Question Stats:

55% (00:46) correct 45% (00:52) wrong based on 315 sessions

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The brightness on Earth of such celestial bodies like stars invariably depends both on the radius of the luminescent object and its temperature.

like stars invariably depends both on the radius of the luminescent object and its temperature

like stars invariably depends both on the radius of the luminescent object and on its temperature

as stars invariably depends on both the radius of the luminescent object and on its temperature

as stars invariably depends both on the radius of the luminescent object and its temperature

as stars invariably depends both on the radius of the luminescent object and on its temperature

Source GMAT FREE OA/OE after three postings
[Reveal] Spoiler: OA

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Can you solve at least some SC questions without delving into the initial statement?

Narendran 98845 44509

Last edited by daagh on 26 Oct 2015, 06:36, edited 1 time in total.
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Re: The brightness on Earth [#permalink]

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25 Oct 2015, 22:50
what is the answer?? I marked E.
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Joined: 29 May 2015
Posts: 18
Re: The brightness on Earth [#permalink]

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25 Oct 2015, 23:27
daagh wrote:
The brightness on Earth of such celestial bodies like stars invariably depends both on the radius of the luminescent object and its temperature.

like stars invariably depends both on the radius of the luminescent object and its temperature

like stars invariably depends both on the radius of the luminescent object and on its temperature

as stars invariably depends on both the radius of the luminescent object and on its temperature

as stars invariably depends both on the radius of the luminescent object and its temperature

as stars invariably depends both on the radius of the luminescent object and on its temperature

Source GMAT FREE OA/OE after three postings

It should be "E". "Like" cannot be followed by clause. Also here "as" is appropriate as there is no comparison, but is a reason.
Then idiom both on X and on Y. Correct me if i am wrong.

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Re: The brightness on Earth [#permalink]

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26 Oct 2015, 02:19
2
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daagh wrote:
The brightness on Earth of such celestial bodies like stars invariably depends both on the radius of the luminescent object and its temperature.

like stars invariably depends both on the radius of the luminescent object and its temperature

like stars invariably depends both on the radius of the luminescent object and on its temperature

as stars invariably depends on both the radius of the luminescent object and on its temperature

as stars invariably depends both on the radius of the luminescent object and its temperature

as stars invariably depends both on the radius of the luminescent object and on its temperature

Source GMAT FREE OA/OE after three postings

The sentence tests 2 idiomatic usage -

1. Such X as Y
2. Both X and Y

A and B out they use Like for giving examples of celestial bodies

Between B , C and D

as stars invariably depends on both the radius of the luminescent object and on its temperature
as stars invariably depends both on the radius of the luminescent object and its temperature
as stars invariably depends both on the radius of the luminescent object and on its temperature

Only E uses the correct parallel idiomatic usage , hence E is the correct answer
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Joined: 09 Jun 2010
Posts: 1347
Re: The brightness on Earth [#permalink]

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26 Oct 2015, 04:17
as mean : in capacity of
such as means: for example
like means : similar to

all 3 words are used before a noun, each with its meaning.

so

only like is correct in this sentence.

above analysis is meaning analysis, which is center of gmat sc. in other words, gmat test us this analysis.

between a and b
without understand of meaning, without using meaning analysis, we can choose the choice in which the word after "both" and "and" are the same. this process is not meaing analysis. it is mechanical process of apply grammar rule without understand meaning

it is clear there are 2 processes, the first the focus of gmat sc, the second easy
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Retired Moderator
Status: worked for Kaplan's associates, but now on my own, free and flying
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Re: The brightness on Earth [#permalink]

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26 Oct 2015, 06:34
Expert's post
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Explanation from GMAT FREE

Creating a filter: the words "such" and "like" do not operate together as they have been combined in the original sentence. The proper idiom is "such as." So (A) is out and we'll for a solution such as the phrase "such as."

Applying the filter: we are left with choices (C) through (E). Within those choices, there is variation in the placement of "both." It can be "both on X and on Y." Or it can be "on both X and Y." Choice (C) has an invalid treatment of "both." So does (D). The correct answer is (E).
_________________

Can you solve at least some SC questions without delving into the initial statement?

Narendran 98845 44509

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Re: The brightness on Earth [#permalink]

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23 Nov 2017, 02:55
the source is actually from gmat-prep.
the question is just a part of a real gmat question b/c this question only tests one specific grammar concept in gmat. Also, the sentence does not look so complex.
Therefore, test takers can do this question for fun only.
Re: The brightness on Earth   [#permalink] 23 Nov 2017, 02:55
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