Use of while : GMAT Sentence Correction (SC)
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# Use of while

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21 Jul 2012, 00:50
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Hi Everyone
I had some concerete beliefs about english language which are getting violated these days.
Guess that is called the idiocyncrasies of the language.

I. Anyways news is, I thought that while when used should have a temporal sense. However, there are many places when while is used as Although- A Concessive Conjunction.
Can some one help me with the scope of While within GMAT grammar? As in can i use while in place of although. If yes when making such usage is correct?

II. More than 300 rivers drain into Siberia's Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.

the above is a correct sentence. However if i write it as below, what makes it wrong?

While more than 300 rivers drain into it, Siberia's Lake Baikal holds 20 percent of the world's fresh water, which is more than all the North American Great Lakes combined.
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21 Jul 2012, 00:57
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I am not sure whether it was in the forums or any videos from Ron I found the following two usages of "While"
I hope it might be of any help to you.
"While" can actually mean two things:
1) while = at the same time as. I practice piano while twiddling my thumbs. (I’m very talented!) I practice piano at the same time as I twiddle my thumbs.
2) while = although, or some sort of contrast. While it’s true that I play piano and know how to twiddle my thumbs, I obviously can’t do both of those things at the same time. That would be impossible!"
Even the examples are also courtesy the same source.
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21 Jul 2012, 04:09
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Let's concentrate for a while

(i) This mat help us to streamline our idiosyncrasies

While @ temporal sense

eg: While i was playing, Mary arrived.
Sally was reading book while Ran was watching television.
She breaths heavily While running.

While @ non-temporal sense

(in other words, “while” to mean “although” or “whereas”)
(“Although”: A Concessive Conjunction which means "in spite of the fact")

The scope of "while "is broad,and it is fine to use while in place of although(according to the need)

(ii) River water problem

More than 300 rivers drain into Siberia's Lake Baikal, which holds 20 percent of the world's fresh water, more than all the North American Great Lakes combined.

more than the 300 rivers which drain into IS MORE THAN all the north American great lakes combined.
(no.of rivers is under consideration)may be all north American Great lakes combines to have only 220 rivers.

While more than 300 rivers drain into it, Siberia's Lake Baikal holds 20 percent of the world's fresh water, which is more than all the North American Great Lakes combined.

Siberia's Lake Baikal holds 20 percent of the world's fresh water IS MORE THAN all the North American Great Lakes combined.
(quantity of water is under consideration)
Fresh water source world wide=3000 million liters,
20% of 3000 million liters is in Siberia's lake= 6000 million liters
which is more than all the north American Great lakes combines(means all the north American Great lakes combines to have less than 6000 million liters of water.

Hope this works !
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22 Jan 2014, 23:13
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Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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24 Apr 2016, 03:52
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Re: Use of while   [#permalink] 24 Apr 2016, 03:52
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