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harika.apu
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Re: The Anasazi settlements at Chaco Canyon were built

by harika.apu Mon Aug 10, 2015 2:51 pm

RonPurewal Wrote:
rschunti Wrote:The Anasazi settlements at Chaco Canyon were built on a spectacular scale with more than 75 carefully engineered structures, of up to 600 rooms each, were connected by a complex regional system of roads.
A. with more than 75 carefully engineered structures, of up to 600 rooms each, were
B. with more than 75 carefully engineered structures, of up to 600 rooms each,
C. of more than 75 carefully engineered structures of up to 600 rooms, each that had been
D. of more than 75 carefully engineered structures of up to 600 rooms and with each
E. of more than 75 carefully engineered structures of up to 600 rooms each had been


The OA is B. What is wrong with all the other answers?
In the correct answer "B", whether the modifier "connected by....." is modifying "room" or "Structures" and why?Pls can you explain this with some rules and examples. Thanks


choice a is a run-on - it tries to have two main verbs without using any sort of subordinating element. if you take out modifiers, adjectives, etc., you're left with the following: the settlements were built with structures were connected. that's bad.

choice b is correct: it uses a nonessential modifier set off by commas ('of up to 600 rooms each'), which, if eliminated, yields the intact and legitimate sentence ...carefully engineered structures, connected by... (with another nonessential modifier).

choice c:
- 'scale of' doesn't make sense
- you can't say 'each that had...' (can't follow 'each' with a relative pronoun - if you're going to use a relative pronoun, it has to come directly after the thing it's trying to modify)
- no justification for using the past perfect ('had been') - that verb, if there's a verb there at all, should be in the simple past (the same tense as everything else in the sentence, because everything described in the sentence is contemporaneous)
- it doesn't make sense to use 'each' AFTER the comma, because it's not true that each structure was connected with a road system. instead, the road system connected all of the structures with each other, which is nowhere close to the same thing. (having 'each' BEFORE the comma makes sense, because it's actually true that each of the structures comprised up to 600 rooms.)
analogy:
the USA comprises 50 states, each of which is united by a federal government --> wrong (the implication is that each state has its own federal government)
the USA comprises 50 states, all of which are united by a federal government --> correct
the USA comprises 50 states, (all) united by a federal government --> correct, whether you have 'all' or not

choice d:
- 'scale of' doesn't make sense
- the use of AND sets up ostensible parallelism, but the two structures given aren't parallel (one starts with of and the other with with)

choice e is also a run-on sentence (you'll see this if you reduce it to its 'skeleton', a la choice a)



hello Ron ,
Can i also eliminate option A because with cannot be followed by a complete sentence ?

Thanks:)
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Re: The Anasazi settlements at Chaco Canyon were built

by RonPurewal Fri Aug 14, 2015 2:11 am

yes!
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Re: The Anasazi settlements at Chaco Canyon were built

by harika.apu Sat Aug 15, 2015 12:10 pm

RonPurewal Wrote:yes!



:)
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Re: The Anasazi settlements at Chaco Canyon were built

by tim Tue Aug 18, 2015 8:13 am

:)
Tim Sanders
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Re: The Anasazi settlements at Chaco Canyon were built

by Raja sekharS832 Sat Jan 09, 2016 4:29 pm

can't the past participle modifier "connected" modify closest noun- rooms . Please explain ?
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Re: The Anasazi settlements at Chaco Canyon were built

by RonPurewal Fri Jan 15, 2016 4:46 am

"connected" is not attached to "rooms".

also, the intended meaning is clear in context... and that's not it.
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Re: The Anasazi settlements at Chaco Canyon were built

by ShubhamG503 Sat Mar 26, 2016 1:13 pm

Hello Ron

The correct option from GMAT Prep is

The Anasazi settlements at Chaco Canyon were built on a spectacular scale, with more than 75 carefully engineered structures, of up to 600 rooms each, connected by a complex regional system of roads.
Please note the comma before with.

I have 2 questions

1. As we can remove non essential modifier "of upto" - can we also remove comma with in a sentence ? Which basically means that connected is modifying the scale which sounds wrong, so I will doubt that. But please advise.
2 How does (comma) WITH and (without comma) WITH differ in GMAT ? Is it in terms of modifying the phrase vs modifying the noun respectively?

Thanks
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Re: The Anasazi settlements at Chaco Canyon were built

by RonPurewal Sun Mar 27, 2016 11:19 am

the presence/absence of punctuation is not tested on this exam.
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Re: The Anasazi settlements at Chaco Canyon were built

by wong.dee1987 Sun May 01, 2016 4:07 am

RonPurewal Wrote:the presence/absence of punctuation is not tested on this exam.

Ron, if it say
(B) with more than 75 carefully engineered structures, each of up to 600 rooms,
is that right?
thanks in advance!
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Re: The Anasazi settlements at Chaco Canyon were built

by RonPurewal Fri May 06, 2016 4:24 am

that'd be fine.
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Re: The Anasazi settlements at Chaco Canyon were built

by LingyuZ986 Mon Sep 26, 2016 12:07 pm

Hi Ron,

Is the understanding of the sentence structure as below correct?

The Anasazi settlements at Chaco Canyon were built on a spectacular scale,
with more than 75 carefully engineered structures, (modify the proceeding clause)
of up to 600 rooms each, (modify structures)
connected by a complex regional system of roads. (modify structures)

As you mentioned in the previous post, comma + prep cannot modify the proceeding noun, and only modifies the proceeding clause. But the reason that "connected by a complex regional system of roads" does not modify the proceeding clause is that it would not make sense if do so. Therefore, "connected by a complex regional system of roads" has to modify "structures".

Is the understanding correct?

Thank you!
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Re: The Anasazi settlements at Chaco Canyon were built

by RonPurewal Fri Sep 30, 2016 2:16 pm

yes, that's correct, but all of this has already been covered in this discussion thread. please read the ENTIRE THREAD •BEFORE• commenting.
thank you.
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Re: The Anasazi settlements at Chaco Canyon were built

by LingyuZ986 Sat Oct 01, 2016 1:02 am

RonPurewal Wrote:yes, that's correct, but all of this has already been covered in this discussion thread. please read the ENTIRE THREAD •BEFORE• commenting.
thank you.


Thank you Ron!
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Re: The Anasazi settlements at Chaco Canyon were built

by RonPurewal Fri Oct 07, 2016 9:36 pm

you're welcome.
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Re: The Anasazi settlements at Chaco Canyon were built

by NicoleT643 Sun Oct 16, 2016 5:29 am

Hi Ron, I read the entire post of this questions, however, I still have unsolved issue

1, Choice C, other than logical meaning error, the usage of 'each' is not correct. Each modifies the closest noun which is rooms, with or without each, that is an essential clause to modify rooms too, therefore, 'each' in choice C is not necessary. Am I correct?

2, Choice D, of more than 75 carefully engineered structures of up to 600 rooms and with each 
the underline of and with are parallel, each is a pronoun which replaces structure, in this case the error in choice D is illogical because it means "each structure was connected by a system of roads" that would mean that each individual structure had its own system of roads! Am I correct?

Thank you in advance.