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# QOTD: Diesel engines burn as much as 30% less fuel than gasoline

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QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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22 Nov 2017, 13:19
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34% (01:03) correct 66% (01:19) wrong based on 748 sessions

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Verbal Question of The Day: Day 163: Sentence Correction

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Diesel engines burn as much as 30% less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have been implicated in global warming.

(A) of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have

(B) of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gasses having

(C) of comparable size, and also they emit far fewer carbon dioxide and other gasses that have

(D) that have a comparable size, and also they emit far less carbon dioxide gas and other gasses that have

(E) that have a comparable size, as well as emitting far less carbon dioxide gas and other gasses having

The A2 is part of a powerful movement in Western Europe, where gasoline prices are often three times what they are in the United States. Diesel engines burn as much as 30 percent less fuel than gasoline engines of comparable size, and they emit far less carbon dioxide and other greenhouse gases, which have been implicated in global warming. After being disparaged for years because they were noisy, smelly, smoke-belching and sluggish, a new generation of much cleaner, more nimble diesel-powered cars is suddenly the height of fashion in Europe.

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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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22 Nov 2017, 19:51
7
4
Quote:
(A) of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have

I can’t complain about this one. “Carbon dioxide gas” is a singular, non-countable noun, so “less” works fine as a modifier. And this part is a little bit tricky, but the second part of the sentence refers to several different “gasses” – a countable, plural noun – so “fewer” is appropriate.

The phrase beginning with “that” (“that have been implicated…”) correctly modifies “other gasses.” It’s also completely fine to use the “-ing” form of the verb after “as well as.”

So I guess we’ll keep (A).

Quote:
(B) of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gasses having

It’s a funny quirk of English: if “as well as” were changed to “and” then we’d want the verbs “burn” and “emit” to be in parallel form. But since we have “as well as”, we’re better off using “emitting”, as we did in (A).

More importantly, I can’t make any sense of the “having been” at the end of the underlined portion. For that reason, we can scrap (B).

Quote:
(C) of comparable size, and also they emit far fewer carbon dioxide and other gasses that have

You could argue that the pronoun “they” is ambiguous here, since it could refer to “diesel engines” or “gasoline engines”, but I’m not convinced: since “they” is the subject of the second clause, it can generally refer back to the subject of the first clause on the GMAT without causing any trouble.

But we definitely have a modifier problem here: “fewer carbon dioxide” doesn’t make any sense, since “carbon dioxide” is a non-countable noun, and “fewer” can only be used with countable nouns. (If you’re not clear about that concept, try counting the noun out loud: “one carbon dioxide, two carbon dioxides, three carbon dioxides…” That makes no sense at all, right? So “carbon dioxide” is non-countable.)

So (C) is gone.

Quote:
(D) that have a comparable size, and also they emit far less carbon dioxide gas and other gasses that have

The first part of the underlined portion isn’t necessarily WRONG, but it definitely isn’t great: “gasoline engines that have a comparable size” is a really crappy way to say “gasoline engines of comparable size.” I just don’t think it makes sense to use the word “have” in this context, since gasoline engines don’t really possess size.

More importantly, we have a problem with the non-countable modifier “less”, since it seems to be modifying both “carbon dioxide gas” (non-countable) and “other gasses” (countable) – and “less” can’t modify a countable noun.

So (D) is out, too.

Quote:
(E) that have a comparable size, as well as emitting far less carbon dioxide gas and other gasses having

The first part of the underlined portion suffers from the same problem as (D): “that have a comparable size” is a lousy way to say “of comparable size.” But again, I wouldn’t necessarily eliminate (E) based on that issue by itself.

The other problem is the same as in (D): “less” seems to modify “other gasses”, and that doesn’t work. Plus, I’m really not sold on the idea of using “having” to modify “gasses” at the end of the underlined portion – the version in (A) (“gasses that have…”) seems a little bit better.

In any case, (E) can be eliminated, and we’re left with (A).
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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22 Nov 2017, 13:39
D,E remove carbon dioxide from the clause completely altering the meaning. Out.
C uses far fewer to denote countability for CO2 and other gases, and that again changes the meaning. Out.
B uses having been and that’s awkward.

A is the best option for me.
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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23 Nov 2017, 02:54
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Awaiting an analysis on A vs C....
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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23 Nov 2017, 05:47
1
spetznaz wrote:
Awaiting an analysis on A vs C....

The problem I see with C is the redundancy of using "and" and "also"...that´s why C is out for me.
Between A and B, would have gone for B but the end of the sentece using "having" is completely incorrect.

D and E are out because they distort the intended meaning of the original sentence.

IMO A is the winner
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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23 Nov 2017, 07:33
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Between A and C.
C has two red flags : ambiguous pronoun 'they' and 'far fewer CO2'. Fewer with CO2 is wrong. CO2 is not a countable item.
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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24 Nov 2017, 13:22
Diesel engines burn as much as 30% less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have been implicated in global warming.

(A) of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have -Correct. Diesel engines emit ...., at the same time emitting ... --> correct

(B) of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gasses having -emit is wrongly used; having is wrongly used

(C) of comparable size, and also they emit far fewer carbon dioxide and other gasses that have -and also they is wrong; fewrer CO2 is wrong (uncountable)

(D) that have a comparable size, and also they emit far fewer of the other gasses having -and also they is wrong; having is wrong

(E) that have a comparable size, as well as emitting far fewer of the other gasses having -having is wrong
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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24 Nov 2017, 20:18
souvik101990 wrote:

Verbal Question of The Day: Day 163: Sentence Correction

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Diesel engines burn as much as 30% less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have been implicated in global warming.

(A) of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have
(B) of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gasses having
(C) of comparable size, and also they emit far fewer carbon dioxide and other gasses that have
(D) that have a comparable size, and also they emit far fewer of the other gasses having
(E) that have a comparable size, as well as emitting far fewer of the other gasses having
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Use of pronoun they is ambiguous - gasoline engines or diesel engines - remove C & D
..... having been implicated in global warming - wrong tense structure- remove B & E

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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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24 Nov 2017, 20:41
I just caught a few typos in (D) and (E) of the original post. So if you dismissed those answer choices quickly, maybe the corrected versions will change your mind? Or at least make you think a little bit?

Sorry for the error, everybody! The explanation will reflect the corrected version of the question.
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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24 Nov 2017, 22:30
Why use fewer here instead of less. I chose D for that reason
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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24 Nov 2017, 22:31
GMATNinja wrote:
Quote:
(A) of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have

I can’t complain about this one. “Carbon dioxide gas” is a singular, non-countable noun, so “less” works fine as a modifier. And this part is a little bit tricky, but the second part of the sentence refers to several different “gasses” – a countable, plural noun – so “fewer” is appropriate.

The phrase beginning with “that” (“that have been implicated…”) correctly modifies “other gasses.” It’s also completely fine to use the “-ing” form of the verb after “as well as.”

So I guess we’ll keep (A).

Quote:
(B) of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gasses having

It’s a funny quirk of English: if “as well as” were changed to “and” then we’d want the verbs “burn” and “emit” to be in parallel form. But since we have “as well as”, we’re better off using “emitting”, as we did in (A).

More importantly, I can’t make any sense of the “having been” at the end of the underlined portion. For that reason, we can scrap (B).

Quote:
(C) of comparable size, and also they emit far fewer carbon dioxide and other gasses that have

You could argue that the pronoun “they” is ambiguous here, since it could refer to “diesel engines” or “gasoline engines”, but I’m not convinced: since “they” is the subject of the second clause, it can generally refer back to the subject of the first clause on the GMAT without causing any trouble.

But we definitely have a modifier problem here: “fewer carbon dioxide” doesn’t make any sense, since “carbon dioxide” is a non-countable noun, and “fewer” can only be used with countable nouns. (If you’re not clear about that concept, try counting the noun out loud: “one carbon dioxide, two carbon dioxides, three carbon dioxides…” That makes no sense at all, right? So “carbon dioxide” is non-countable.)

So (C) is gone.

Quote:
(D) that have a comparable size, and also they emit far less carbon dioxide gas and other gasses that have

The first part of the underlined portion isn’t necessarily WRONG, but it definitely isn’t great: “gasoline engines that have a comparable size” is a really crappy way to say “gasoline engines of comparable size.” I just don’t think it makes sense to use the word “have” in this context, since gasoline engines don’t really possess size.

More importantly, we have a problem with the non-countable modifier “less”, since it seems to be modifying both “carbon dioxide gas” (non-countable) and “other gasses” (countable) – and “less” can’t modify a countable noun.

So (D) is out, too.

Quote:
(E) that have a comparable size, as well as emitting far less carbon dioxide gas and other gasses having

The first part of the underlined portion suffers from the same problem as (D): “that have a comparable size” is a lousy way to say “of comparable size.” But again, I wouldn’t necessarily eliminate (E) based on that issue by itself.

The other problem is the same as in (D): “less” seems to modify “other gasses”, and that doesn’t work. Plus, I’m really not sold on the idea of using “having” to modify “gasses” at the end of the underlined portion – the version in (A) (“gasses that have…”) seems a little bit better.

In any case, (E) can be eliminated, and we’re left with (A).

Why are other gasses countable ?
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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25 Nov 2017, 08:26
souvik101990 wrote:

Verbal Question of The Day: Day 163: Sentence Correction

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Diesel engines burn as much as 30% less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have been implicated in global warming.

(A) of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have - emitting in the ing form modifies the clause "diesel engines burn as much as 30% less fuel" because in the process of burning less fuel, it is emitting less CO2 and fewer other gasses. Correct.

(B) of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gasses having - that have been implicated is better in usage than having

(C) of comparable size, and also they emit far fewer carbon dioxide and other gasses that have - fewer can't modify uncountable noun carbon dioxide

(D) that have a comparable size, and also they emit far less carbon dioxide gas and other gasses that have - less can't modify the countable noun other gasses.

(E) that have a comparable size, as well as emitting far less carbon dioxide gas and other gasses having - less can't modify the countable noun other gasses and gasses that have is better in usage

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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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26 Nov 2017, 08:17
Diesel engines burn as much as 30 percent less fuel as gasoline engines with comparable size do, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to be contributing to global warming.

A. as gasoline engines with comparable size do, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to be contributing
B. as gasoline engines of comparable size do, emitting far less carbon dioxide and other greenhouse gases, which they have determined to contribute
C. than do gasoline engines of comparable size, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to contribute
D. than do gasoline engines of comparable size, and emitting far less carbon dioxide and other greenhouse gases, which have been determined as contributors
E. than gasoline engines whose size is comparable, and they emit far less carbon dioxide and other greenhouse gases, which have been determined as contributing
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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26 Nov 2017, 08:33
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saswata4s wrote:
Diesel engines burn as much as 30 percent less fuel as gasoline engines with comparable size do, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to be contributing to global warming.

A. as gasoline engines with comparable size do, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to be contributing
B. as gasoline engines of comparable size do, emitting far less carbon dioxide and other greenhouse gases, which they have determined to contribute
C. than do gasoline engines of comparable size, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to contribute
D. than do gasoline engines of comparable size, and emitting far less carbon dioxide and other greenhouse gases, which have been determined as contributors
E. than gasoline engines whose size is comparable, and they emit far less carbon dioxide and other greenhouse gases, which have been determined as contributing

hi..

points to be looked into..
1) Comparison :
diesel engines burn AND do gasoline engines.. is correct
E is out

2) with comparable size vs of comparable size
OF comparable size is correct
Eliminate A

3) THEY has no antecedents in B
B. as gasoline engines of comparable size do, emitting far less carbon dioxide and other greenhouse gases, which they have determined to contribute
B is out

4) D has awkward constr at " and emitting.." and determined as contributors

C is perfect
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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26 Nov 2017, 12:29
saswata4s wrote:
Diesel engines burn as much as 30 percent less fuel as gasoline engines with comparable size do, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to be contributing to global warming.

A. as gasoline engines with comparable size do, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to be contributing
B. as gasoline engines of comparable size do, emitting far less carbon dioxide and other greenhouse gases, which they have determined to contribute
C. than do gasoline engines of comparable size, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to contribute
D. than do gasoline engines of comparable size, and emitting far less carbon dioxide and other greenhouse gases, which have been determined as contributors
E. than gasoline engines whose size is comparable, and they emit far less carbon dioxide and other greenhouse gases, which have been determined as contributing

with 'Less' there must be 'Then' so A & B out
In E wrong comparision with size of the engine
In D 'as contributors to global warming' is wrong AND ....,and emitting far less.. seems to be modifying diesel engine instead of gasoline engine.

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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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27 Nov 2017, 00:31
saswata4s wrote:
Diesel engines burn as much as 30 percent less fuel as gasoline engines with comparable size do, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to be contributing to global warming.

A. as gasoline engines with comparable size do, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to be contributing
B. as gasoline engines of comparable size do, emitting far less carbon dioxide and other greenhouse gases, which they have determined to contribute
C. than do gasoline engines of comparable size, and they emit far less carbon dioxide and other greenhouse gases, which have been determined to contribute
D. than do gasoline engines of comparable size, and emitting far less carbon dioxide and other greenhouse gases, which have been determined as contributors
E. than gasoline engines whose size is comparable, and they emit far less carbon dioxide and other greenhouse gases, which have been determined as contributing

This question is different from the below question:
https://gmatclub.com/forum/qotd-diesel- ... l#p1966798

This question should not have been merged.
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Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline  [#permalink]

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27 Nov 2017, 05:14
The trick lies in understanding the use of the word as well as and how it is different from the word "and". as well as + ing - modifies the previous clause acting as a modifier. More specifically emphasizing that this modifier is attained at the same time as the first.

Fewer is wrong for a noun-countable noun CO2 so C is wrong.
B - having - wrong.
D,E - that have a comparable size ? - wrong
Re: QOTD: Diesel engines burn as much as 30% less fuel than gasoline &nbs [#permalink] 27 Nov 2017, 05:14
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