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generis
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generis

In 2013, more than three times as many serious automobile accidents were caused by drivers under the age of 20 than over it.

A) than

B) than caused

C) than were caused

D) than had been caused

E) than there were caused

I am going to go with A.

"...serious automobile accidents were caused by drivers..." (1) under the age of 20....(2) over the age of 20

The comparison is between these 2 age groups. "A" clearly shows that
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In 2013, more than three times as many serious automobile accidents were caused by drivers under the age of 20 than over it.

Analysis:
Comparison: Accidents caused by drivers under the age of 20 vs Accidents caused by drivers over the age of 20
Timeline of comparison: In 2013 ( Both events were from 2013. No need to change tense)
Marker: more..than

A) than

=> many serious automobile accidents were caused by drivers under the age of 20 than many serious automobile accidents were caused by drivers over the age of 20.
=> Ellipsis: many serious automobile accidents were caused by drivers under the age of 20 than over the age of 20
=> Concise: many serious automobile accidents were caused by drivers under the age of 20 than over it ( the pronoun 'it' replaces the noun phrase 'the age of 20'

B) than caused

=> Incorrect construction: many serious automobile accidents were caused by drivers under the age of 20 than caused over the age of 20 ( we have chance to eliminate the whole common part 'many serious automobile accidents were caused by drivers'. So, why do we need to use caused in this case )

C) than were caused

=> same error as in B

D) than had been caused

=> Both events happened in 2013. Need to use simple past for both events. No need to use past perfect

E) than there were caused

=> same error as in B
=> The use of 'there ' is unnecessary here.
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IMO A is the best choice.

Here we are comparing the ages of the drivers.
We will require than.


A) than

Correct.
It correctly compares the age of drivers.

B) than caused
Incorrect.
than caused what?Accidents .
No,we are comparing ages here.
This distorts the meaning of the sentence.


C) than were caused
Incorrect
Distorts the meaning as in B using a different tense won't change a thing.

D) than had been caused
Incorrect.
Sameas C

E) than there were caused
Incorrect
Same as C.

Posted from my mobile device
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In 2013, more than three times as many serious automobile accidents were caused by drivers under the age of 20 than over it.

A) than
here, "than" is correctly used to compare between drivers under the age of 20 and over the age of 20. Also, saying "than over it" is not ambiguous since we only have "age" as a singular noun here, so "it" can only refer to age.
B) than caused

C) than were caused

D) than had been caused

E) than there were caused

Answers B, C, D and E just sound wrong mainly because it makes the sentence sound very unclear. Unfortunately, I am not able to specifically disect every answer and state why each of these are wrong. However, it is clear in D that "had been" is unnecessary because we are are comparing statistics of two different age groups gathered from the same years.

My answer here is A. I noticed often times that with these type of SC, the most simple answer is usually the right one.

Also, can anyone explain why in this context, saying "THAN" in the end is correct? I saw many examples in which the correct structure would be e.g. "Mike likes to eat more than three as many cookies AS Maria". How come in this GMAT question, we are using THAN instead?
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generis

Project SC Butler: Sentence Correction (SC2)


For SC butler Questions Click Here

In 2013, more than three times as many serious automobile accidents were caused by drivers under the age of 20 than over it.

A) than

B) than caused

C) than were caused

D) than had been caused

E) than there were caused

IMO A is the correct answer.

This question compares "under the age of 20" and "over it". "Over it" here means over the age of 20. Therefore the original sentence is correct.

I eliminate other options from B to E because they are all unclear in meaning.
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The two parallel comparisons here would be under the age of 20 and over the age of 20.

In 2013, more than three times as many serious automobile accidents were caused by drivers under the age of 20 than over it.

A) than - Concise. Correct.

B) than caused - Incorrect.

C) than were caused - Incorrect.

D) than had been caused - 'had' is wrong. Incorrect.

E) than there were caused - 'there' is awkward. Incorrect.

Hence, the answer is Option (A).
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A) than

B) than caused : doesn't make sense, "than caused over it?"

C) than were caused:Same doesn't make sense

D) than had been caused: totally senseless

E) than there were caused: againnn a meaningless choice

Hence A
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In 2013, more than three times as many serious automobile accidents were caused by drivers under the age of 20 than over it.

POE:
Stop sign- more than, it is a comparison question. We are comparing ages here.
Eliminate (B), (C), (D) & (E).


A) than - CORRECT|

B) than caused

C) than were caused

D) than had been caused

E) than there were caused
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The official explanation is here.
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generis, what is the source of this question? I found a similar question in Erica L Meltzer's GMAT SC guide. She structures the question a tad bit differently though: In 2013, more than three times as many serious automobile accidents were caused by drivers under the age of 20 than over it. (pg 113, 'updated for 2021' edition). She then gives the following answer choices :

A) than
B) than caused
c) than were caused
d) than there were caused
e) than had been caused.

Her answer is A. But I think there is something odd about it. I think it should be "as over it", because "three times as many...as" seems to be the right construction. Please let me know what you think.

Thank you.
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