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The development of a new type of manufacturing called 3-D

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The development of a new type of manufacturing called 3-D [#permalink] New post 27 Apr 2013, 03:16
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The development of a new type of manufacturing – called 3-D printing or additive manufacturing – will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding who and where products can be made.

A. The development of a new type of manufacturing – called 3-D printing or additive manufacturing – will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding who and where products can be made.

B. The development of a new type of manufacturing – called 3-D printing or additive manufacturing – will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding where products can be made and who can make them.

C. The development of a new type of manufacturing, which is called 3-D printing or additive manufacturing, will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding where products can be made and who can make them.

D. A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images, and this will lower costs considerably by greatly expanding who and where products can be made.

E. A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images and that will lower manufacturing costs considerably by expanding where products can be made and who can make them.
[Reveal] Spoiler: OA

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Re: The development of a new type of manufacturing – called 3-D [#permalink] New post 27 Apr 2013, 03:25
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A, B and C have the same error

The development of a new type of manufacturing (...) will involve

The new type of manufacturing "will involve (...)", not its "developement" (logical error). We are down to D and E.

D. A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images, and this will lower costs considerably by greatly expanding who and where products can be made.

It seems to say that the fact that "can replicate 3-D images" will lower the cost: wrong.
"who (...)products can be made" is another error in the answer. "Who" needs a different verb than "where" ( where products can be made and who can make them )

E is correct
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Re: The development of a new type of manufacturing – called 3-D [#permalink] New post 29 Apr 2013, 00:25
Is "greatly expanding" grammatically correct?
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Re: The development of a new type of manufacturing – called 3-D [#permalink] New post 29 Apr 2013, 02:21
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Transcendentalist wrote:
Is "greatly expanding" grammatically correct?


Yes, it is. "Greatly" is an adverb correctly describing the "expanding", which is a progressive form of verb here.

You can ask: How sh is expanding?
And you can answer: Sh is expanding greatly.
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Re: The development of a new type of manufacturing called 3-D [#permalink] New post 25 Apr 2014, 06:39
B vs E, although I agree with E as the correct answer choice I'm a bit dissapointed about the change in meaning from the original sentence. B says 'can' lower the costs while E says 'will' lower the costs. These two things are obviously different and thus creates confusion

Anyone wish to add something to this?
Cheers!
J :)
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Re: The development of a new type of manufacturing called 3-D [#permalink] New post 28 Apr 2014, 09:07
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Howdy! I think I might be able to help a little bit here! :)

jlgdr wrote:
B vs E, although I agree with E as the correct answer choice I'm a bit dissapointed about the change in meaning from the original sentence. B says 'can' lower the costs while E says 'will' lower the costs. These two things are obviously different and thus creates confusion

Anyone wish to add something to this?
Cheers!
J :)


This is an excellent question! It is actually a subtle change that I didn't notice the first time that I read through these answers. Let's look at them:


B. The development of a new type of manufacturing – called 3-D printing or additive manufacturing – will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding where products can be made and who can make them.

E. A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images and that will lower manufacturing costs considerably by expanding where products can be made and who can make them.

Honestly, I am a bit disappointed with this answer choice. You are correct that the meaning has been changed. In (B), we can see that this technology has the ability to lower costs and replicate 3-D images. In (D), the meaning is slightly different. The technology still has the ability to replicate 3-D images, but doesn't yet have the ability to lower costs. That will happen in the future.

Now maybe, in (B) this idea is implied with the use of "will involve," but I think this is a very very weak inference and likely not true.

Ultimately, I think this is a flaw in the question. Whoever wrote this questions probably didn't notice the change that they were making to the sentence in (E). I don't see any reason for the change in meaning, unless the question writer expects us to have outside knowledge about 3-D manufacturing. I know that it is pretty expensive at this point, and it is not good for a lot of uses because it is so expensive. But the GMAT would never require us to have this kind of knowledge to choose a correct answer.

I think the safest thing to say here is that the answer choice is slightly flawed. The question writer made a mistake that alters the meaning of the sentence. The best wording of answer choice (E), and to make this question truly beneficial for GMAT prep is as follows:

A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images and that can lower manufacturing costs considerably by expanding where products can be made and who can make them.

I hope that helps! :)
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Re: The development of a new type of manufacturing called 3-D [#permalink] New post 28 Apr 2014, 12:42
KevinRocci wrote:
Howdy! I think I might be able to help a little bit here! :)

jlgdr wrote:
B vs E, although I agree with E as the correct answer choice I'm a bit dissapointed about the change in meaning from the original sentence. B says 'can' lower the costs while E says 'will' lower the costs. These two things are obviously different and thus creates confusion

Anyone wish to add something to this?
Cheers!
J :)


This is an excellent question! It is actually a subtle change that I didn't notice the first time that I read through these answers. Let's look at them:


B. The development of a new type of manufacturing – called 3-D printing or additive manufacturing – will involve futuristic printing machines that can replicate 3-D images and that can lower costs considerably by greatly expanding where products can be made and who can make them.

E. A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images and that will lower manufacturing costs considerably by expanding where products can be made and who can make them.

Honestly, I am a bit disappointed with this answer choice. You are correct that the meaning has been changed. In (B), we can see that this technology has the ability to lower costs and replicate 3-D images. In (D), the meaning is slightly different. The technology still has the ability to replicate 3-D images, but doesn't yet have the ability to lower costs. That will happen in the future.

Now maybe, in (B) this idea is implied with the use of "will involve," but I think this is a very very weak inference and likely not true.

Ultimately, I think this is a flaw in the question. Whoever wrote this questions probably didn't notice the change that they were making to the sentence in (E). I don't see any reason for the change in meaning, unless the question writer expects us to have outside knowledge about 3-D manufacturing. I know that it is pretty expensive at this point, and it is not good for a lot of uses because it is so expensive. But the GMAT would never require us to have this kind of knowledge to choose a correct answer.

I think the safest thing to say here is that the answer choice is slightly flawed. The question writer made a mistake that alters the meaning of the sentence. The best wording of answer choice (E), and to make this question truly beneficial for GMAT prep is as follows:

A newly developed type of manufacturing called 3-D printing, or additive manufacturing, involves futuristic printing machines that can replicate 3-D images and that can lower manufacturing costs considerably by expanding where products can be made and who can make them.

I hope that helps! :)

Whats wrong with B anyways..I mean if the author had not committed the mistake of us having pre knowledge on 3D printng..ie Had there been a can in E too
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Re: The development of a new type of manufacturing called 3-D [#permalink] New post 28 Apr 2014, 13:17
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JusTLucK04 wrote:
Whats wrong with B anyways..I mean if the author had not committed the mistake of us having pre knowledge on 3D printng


Zarrolou hints at why (B) is wrong. The problem here is the subject of the sentence. Instead of "type of manufacturing" as the subject, answer choice (B) makes "development" the subject of the sentence. Now this may not make sense immediately, but ask yourself if development is the logical subject of the verb:

"development ... will involve futuristic printing machines ..."

This is illogical! The development won't involve these things. This is a description of 3-D printing and printers—not a description of their development. So this is a subtle distinction but an important one.

"... the new type of manufacturing ... will involve ... printing machines ..."

Does that make sense?

We can't describe the development of 3-D printers in the same way that we describe 3-D printers.

Cheers! :)
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Re: The development of a new type of manufacturing called 3-D [#permalink] New post 28 Apr 2014, 13:29
KevinRocci wrote:
JusTLucK04 wrote:
Whats wrong with B anyways..I mean if the author had not committed the mistake of us having pre knowledge on 3D printng


Zarrolou hints at why (B) is wrong. The problem here is the subject of the sentence. Instead of "type of manufacturing" as the subject, answer choice (B) makes "development" the subject of the sentence. Now this may not make sense immediately, but ask yourself if development is the logical subject of the verb:

"development ... will involve futuristic printing machines ..."

This is illogical! The development won't involve these things. This is a description of 3-D printing and printers—not a description of their development. So this is a subtle distinction but an important one.

"... the new type of manufacturing ... will involve ... printing machines ..."

Does that make sense?

We can't describe the development of 3-D printers in the same way that we describe 3-D printers.

Cheers! :)

Is there anyway we can identify such errors...This is my second same mistake today...and I dont seem to get a hold of it...It passes the ear test so smoothly that it is never a suspect
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Last edited by JusTLucK04 on 28 Apr 2014, 21:53, edited 1 time in total.
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Re: The development of a new type of manufacturing called 3-D [#permalink] New post 28 Apr 2014, 13:57
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JusTLucK04 wrote:
Is there anyway we can identify such errors...This is my second same mistake today...and I dont see to get a hold of it...It passes the ear test so smoothly that it is never a suspect


These errors are tough to notice because they are so subtle. And it's even harder when they separate the subject and the predicate, like in this sentence. Our minds are really good at ignoring this sort of illogical sentence and making sense of what is there, so we have to pay attention to the meeting created by the words in the sentence—not what our minds tell us.

This isn't the best answer, I know, but there is no hard fast rule. We have to pay attention to the logical coherence of the subject and the predicate. Do they make sense together? I suppose the word "development" might be a good tip, though. It is real easy to start talking about the thing itself even though the subject is "development." So I'd keep an eye out for that. Besides that make sure the sentence is logical. :)
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Re: The development of a new type of manufacturing called 3-D [#permalink] New post 20 Jun 2015, 03:21
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Re: The development of a new type of manufacturing called 3-D [#permalink] New post 21 Jul 2015, 23:09
KevinRocci wrote:
JusTLucK04 wrote:
Whats wrong with B anyways..I mean if the author had not committed the mistake of us having pre knowledge on 3D printng


Zarrolou hints at why (B) is wrong. The problem here is the subject of the sentence. Instead of "type of manufacturing" as the subject, answer choice (B) makes "development" the subject of the sentence. Now this may not make sense immediately, but ask yourself if development is the logical subject of the verb:

"development ... will involve futuristic printing machines ..."

This is illogical! The development won't involve these things. This is a description of 3-D printing and printers—not a description of their development. So this is a subtle distinction but an important one.

"... the new type of manufacturing ... will involve ... printing machines ..."

Does that make sense?

We can't describe the development of 3-D printers in the same way that we describe 3-D printers.

Cheers! :)



Do "new type of manufacturing " and "newly developed type of manufacturing " mean the same ?
newly developed manufacturing process should be the correct clause , I think "newly developed type of manufacturing " conveys meaning like
"moulding type manufacturing " or rolling type manufacturing.
Re: The development of a new type of manufacturing called 3-D   [#permalink] 21 Jul 2015, 23:09
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