Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2301:30 AM EDT
-02:30 AM EDT
Struggling with GMAT Verbal as a non-native speaker? Harsh improved his score from 595 to 695 in just 45 days—and scored a 99 %ile in Verbal (V88)! Learn how smart strategy, clarity, and guided prep helped him gain 100 points.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
66% (01:41) correct
34%
(01:56)
wrong
based on 4648
sessions
History
Date
Time
Result
Not Attempted Yet
Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore.
A. Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore.
B. Over the course of the eighteenth century a tripling in the average output of ironwork was due to the replacement of charcoal by coal for the fuel used in the smelting of iron ore, in addition to several improvements in blowing machinery.
C. With charcoal's being replaced by coal as the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century.
D. The replacement of charcoal with coal for the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century.
E. Charcoal being replaced by coal as the fuel used in the smelting of iron ore, and several improvements in blowing machinery, which tripled the average output of ironwork over the course of the eighteenth century.
A. Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore.
B. Over the course of the eighteenth century a tripling in the average output of ironwork was due to the replacement of charcoal by coal for the fuel used in the smelting of iron ore, in addition to several improvements in blowing machinery.
C. With charcoal's being replaced by coal as the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century.
D. The replacement of charcoal with coal for the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century.
E. Charcoal being replaced by coal as the fuel used in the smelting of iron ore, and several improvements in blowing machinery, which tripled the average output of ironwork over the course of the eighteenth century.
Solving this question helps.
Taking a timed set of similar questions in
GMAT Club Forum Quiz →
is even better.
28 Oct 2011, 03:25
Kudos
Bookmarks
Send me emails if you want to discuss SC with me, and the address is in the signiture.
The basic idea of my argument for choosing A is that there is an semantical ambiguity about the verbial modifier 'over the century'
I think D, E are clearly grammatically unsound.
So A B & C are left.
Now, suppose they are all grammatically correct.
In the sentence B, the problem is we are not sure about the time when 'a tripling' occurs.
Let's consider the following sentence:
#1，Over the course of the last two decades, the disintegration of the Soviet Union continued effecting the international politics.
The disintegration of Soviet Union didn't last for 20 years. What incessantly existed in the last 20 years was the effect of its disintegration. 'Over the course of the last two decades' is an adverbial modifier, and it is modifying the whole sentence, not the subject.
Back to the choice B:
Its main structure is:
over the course of 18th century (advervial modifier) a tripling (subject) was due to...(predicative).
And the adverbial is modifying the whole sentence, not the subject. So we are not sure when the 'tripling' happened.
But the author clearly wanted to tell us that 'the output of iron outwork' were incassently growing over the whole 18th century, and it tripled as a result.
So B is ambiguous.
For C
There are two ambiguous points:
1. Sentence C fails to show the causal relationship between 'the output of iron' and 'those technique improvements'.
As we can inform, the author tried to tell us the improvements of certain techniques CAUSE the tripling of iron output.
But by using 'with', the sentence C fails to tell us the logic relationship between the 'improvements of techniques' and 'tripling of iron output'
For example:
#3 I passed the exam, with the pan borrowed from my roommate.
#4 I passed the exam, by using the pan borrowed from my roommate.
#5 I passed the exam, with very little preparation
In #3, there is no causal relationship between 'pass the exam' and 'pan borrowed from my roommate'. They are just coincident.
but by #4, I claim that there is some (magical) causal relationship between 'pass the exam' and 'using the pan...'
In #5, the preposition 'with' shows a little flavor of surprise: even though I had little preparation, I passed the exam. And here, no causal relationship at all.
Back to our question. By using 'with', Sentence C only shows the coincidence of those events (like the pan and to pass the exam), not their causal relationship which the author was dying to tell us.
2. the adverbial modifier in sentence C failed tell us when those techniques improvements happed.
As I mentioned above, the adverbial modifier is modifying the sentence. In sentence C, luckily, the adverbial 'over 18 century' is clearly modifying the sentence 'the output tripled', and this is what the author wanted to say.
But it is not modifying other adverbials, i.e. 'charcoal's being replaced by coal as the fuel used in the smelting of iron ore and several improvements in blowing machinery'. Therefore, we are still not sure about when these happened.
So C is out.
Choose A.
A's structure looked wierd, because the author intenionally put the three parts together without using a comma:
1 the output tripled...
2 as a result of the improvement of...
3 and because the coal replace...
Therefore the adverbial modifier 'over the cause of the 18th century' with a comma can modify these three simultaneously, and A clearly tells us that the tripling is a tripling over the 18th century, and that the improvement of blowing technique and the coal replacement both happened some times during the 18th century.
So although A looks very artificial, it clearly shows what the author wanted to tell us
The basic idea of my argument for choosing A is that there is an semantical ambiguity about the verbial modifier 'over the century'
I think D, E are clearly grammatically unsound.
So A B & C are left.
Now, suppose they are all grammatically correct.
In the sentence B, the problem is we are not sure about the time when 'a tripling' occurs.
Let's consider the following sentence:
#1，Over the course of the last two decades, the disintegration of the Soviet Union continued effecting the international politics.
The disintegration of Soviet Union didn't last for 20 years. What incessantly existed in the last 20 years was the effect of its disintegration. 'Over the course of the last two decades' is an adverbial modifier, and it is modifying the whole sentence, not the subject.
Back to the choice B:
Its main structure is:
over the course of 18th century (advervial modifier) a tripling (subject) was due to...(predicative).
And the adverbial is modifying the whole sentence, not the subject. So we are not sure when the 'tripling' happened.
But the author clearly wanted to tell us that 'the output of iron outwork' were incassently growing over the whole 18th century, and it tripled as a result.
So B is ambiguous.
For C
There are two ambiguous points:
1. Sentence C fails to show the causal relationship between 'the output of iron' and 'those technique improvements'.
As we can inform, the author tried to tell us the improvements of certain techniques CAUSE the tripling of iron output.
But by using 'with', the sentence C fails to tell us the logic relationship between the 'improvements of techniques' and 'tripling of iron output'
For example:
#3 I passed the exam, with the pan borrowed from my roommate.
#4 I passed the exam, by using the pan borrowed from my roommate.
#5 I passed the exam, with very little preparation
In #3, there is no causal relationship between 'pass the exam' and 'pan borrowed from my roommate'. They are just coincident.
but by #4, I claim that there is some (magical) causal relationship between 'pass the exam' and 'using the pan...'
In #5, the preposition 'with' shows a little flavor of surprise: even though I had little preparation, I passed the exam. And here, no causal relationship at all.
Back to our question. By using 'with', Sentence C only shows the coincidence of those events (like the pan and to pass the exam), not their causal relationship which the author was dying to tell us.
2. the adverbial modifier in sentence C failed tell us when those techniques improvements happed.
As I mentioned above, the adverbial modifier is modifying the sentence. In sentence C, luckily, the adverbial 'over 18 century' is clearly modifying the sentence 'the output tripled', and this is what the author wanted to say.
But it is not modifying other adverbials, i.e. 'charcoal's being replaced by coal as the fuel used in the smelting of iron ore and several improvements in blowing machinery'. Therefore, we are still not sure about when these happened.
So C is out.
Choose A.
A's structure looked wierd, because the author intenionally put the three parts together without using a comma:
1 the output tripled...
2 as a result of the improvement of...
3 and because the coal replace...
Therefore the adverbial modifier 'over the cause of the 18th century' with a comma can modify these three simultaneously, and A clearly tells us that the tripling is a tripling over the 18th century, and that the improvement of blowing technique and the coal replacement both happened some times during the 18th century.
So although A looks very artificial, it clearly shows what the author wanted to tell us
25 May 2017, 21:31
Kudos
Bookmarks
Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore.
A. Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore. -- Perhaps the choice that comes nearest to the best with the introductory prepositional phrase duly followed by the subject and its action of tripling.
B. Over the course of the eighteenth century, a tripling in the average output of ironwork was due to the replacement of charcoal by coal for the fuel used in the smelting of iron ore, in addition to several improvements in blowing machinery. --- The prepositional introducer is wrongly modified by a tripling while it should modify the subject 'the average output'.
C.With charcoal's being replaced by coal as the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century. ---Who is replacing the coal should be placed next to the comma after machinery. Faulty modification
D.The replacement of charcoal with coal for the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century. -- No connect between the introducer and the main clause as many have pointed out.
E. Charcoal being replaced by coal as the fuel used in the smelting of iron ore, and several improvements in blowing machinery, which tripled the average output of ironwork over the course of the eighteenth century. --- A fragment.
A. Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore. -- Perhaps the choice that comes nearest to the best with the introductory prepositional phrase duly followed by the subject and its action of tripling.
B. Over the course of the eighteenth century, a tripling in the average output of ironwork was due to the replacement of charcoal by coal for the fuel used in the smelting of iron ore, in addition to several improvements in blowing machinery. --- The prepositional introducer is wrongly modified by a tripling while it should modify the subject 'the average output'.
C.With charcoal's being replaced by coal as the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century. ---Who is replacing the coal should be placed next to the comma after machinery. Faulty modification
D.The replacement of charcoal with coal for the fuel used in the smelting of iron ore and several improvements in blowing machinery, the average output of ironwork tripled over the eighteenth century. -- No connect between the introducer and the main clause as many have pointed out.
E. Charcoal being replaced by coal as the fuel used in the smelting of iron ore, and several improvements in blowing machinery, which tripled the average output of ironwork over the course of the eighteenth century. --- A fragment.
)
