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Even in this age of conservation, cooking ranges that consume fossil

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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post 28 Nov 2017, 14:16
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egmat wrote:
Ravindra.here wrote:
well i don't agree with your explanation. Clearly , it seems like producing is a present participle
that is referring to cooking ranges that use fossil fuel .However, here producing is modifying ""those""
and the best construction , which is ANSWER B, compares the heat produced by Magnetic resonance cooking ranges
to the heat produced by one of the fossil fuels , natural gas.
As you said we are comparing heat produced by fossil fuels to heat produced by natural gas is wrong according to me.
And that is why option b adds a verb after natural gas in b



Hello Ravindra.here,

I agree to your analysis. Good observation points there. :-)

The approach to solve this question is simple - focus on the intended comparison.

The sentences compares two kinds of cooking ranges. They have been compared because one produces heat more efficiently than the other.

However, Choices A, C, and E presents ambiguous comparison because in the absence of the helping verb does, we can infer two comparisons in these choices:

Comparison 1: Cooking ranges that rely on magnetic resonance produce heat more efficiently than natural gas produces. Entities compared: Cooking ranges that rely on magnetic resonance and natural gas.


Comparison 2: Cooking ranges that rely on magnetic resonance produce heat more efficiently than natural gas. Entities compared: heat and natural gas.

Per the context of the sentence, Comparison 2 does nit make any sense because fossil fuels are natural gas only.

Hence, we must repeat the helping verb does to make the comparison clear.

This analysis leaved us with Choice B and D.

Use of which is incorrect in Choice D as which refers to magnetic resonance. Per the context of the sentence, magnetic resonance is not the part of comparsion. Hence, Choice D is correct.

Choice B is the clear winner.


Hope this helps. :-)
Thanks.
Shraddha


Hi,

As per the usage of ',' + verb-ing modifier, it shall modify preceding clause(precisely the verb in the clause)
Also as e-gmat mentions in the course, the doer of the verb and the modifier should always be same.

Could you please advise what is being modified and who is the doer in this case
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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post 03 Feb 2019, 02:47
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How to choose between B vs D
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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post 03 Feb 2019, 03:15
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Even in this age of conservation, cooking ranges that consume fossil fuels are far more common than those that rely on magnetic resonance, producing heat more efficiently than natural gas.

A. producing heat more efficiently than natural gas
B. producing heat more efficiently than natural gas does
C. which produce heat more efficiently than natural gas
D. which produce heat more efficiently than natural gas does
E. much more efficient at producing heat than natural gas

Option B: There seems to be a misconception about what is the real previous clause that the comma + verb+ing modifier is modifying. It is not the clause starting with the cooking ranges that consume fossil fuels (incidentally. natural gas is one such fossil fuel), but the relative clause that starts with the demonstrative pronoun -- 'those' that rely on MR. -- Therefore, it is clear that 'producing heat more efficiently than natural gas does" is justly modifying the cooking ranges that rely on MR
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New post 03 Feb 2019, 03:24
daagh sir

I understand that “ producing heat....” refers to MR based cooking ranges .

However my doubt is that we are comparing cooking ranges to natural gas , I was thinking as below

“Producing heat more efficiently than those using natural gas do “

Am I thinking too literally ?

How to deal with such subtle questions ?
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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post Updated on: 19 Apr 2019, 23:37
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Even in this age of conservation, cooking ranges that consume fossil fuels are far more common than those that rely on magnetic resonance, producing heat more efficiently than natural gas.

A. producing heat more efficiently than natural gas
B. producing heat more efficiently than natural gas does
C. which produce heat more efficiently than natural gas
D. which produce heat more efficiently than natural gas does
E. much more efficient at producing heat than natural gas

Option B: There seems to be a misconception about what is the real previous clause that the comma + verbing modifier is modifying. It is not the clause starting with the cooking ranges that consume fossil fuels (incidentally. natural gas is one such fossil fuel), but the relative clause that starts with the demonstrative pronoun -- 'those' that rely on MR. -- Therefore, it is clear that 'producing heat more efficiently than natural gas does" is justly modifying the MR based cooking ranges.

We can see that essentially, there are two comparisons involved in this hard nut of the question.
The first is the comparison between the cooking ranges of fossil fuels and the MRs. The first "than" marks this comparison.

The second one is about which produces heat more efficiently, whether NG or MR. The second 'than' signifies this aspect.

Both the comparisons should be dealt with one-on-one, like A vs. B and C vs. D but not A vs.C and B vs. D.
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Originally posted by daagh on 03 Feb 2019, 03:59.
Last edited by daagh on 19 Apr 2019, 23:37, edited 1 time in total.
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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post 08 Mar 2019, 03:52
A and E compare ‘ranges’ and ‘natural gas’. In options C and D, ‘which produce’ causes a ‘Subject Verb disagreement’.

B is a little unclear but it is the best of the lot.
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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post 19 Apr 2019, 13:57
Kindly provide correct solution to this problem
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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post 15 May 2019, 18:36
daagh wrote:
First, let’s clear a few things. ,
1. Natural gas is a fossil fuel; So there can not be a comparison between fossil fuel and NG
2. First comparison is between cooking ranges that use fossil fuels and cooking ranges ( denoted by the pronoun those) that uses magnetic resonance (MR)
3. The second comparison is between the heating efficiency of MR and that of natural gas( a fossil fuel)
4. ‘Producing heat more efficiently than natural gas’ has to modify MR ranges rather than NG’s ranges. The end of the passage makes it clear.


A. producing heat more efficiently than natural gas --- faulty comparison between ranges and a fuel. Also may mean that MR produces heat more efficiently that it produces NG

B. producing heat more efficiently than natural gas does;---- the verb does make it clear that the comparison is between the production efficiency of MR over NG; best among the lot.
C. which produce heat more efficiently than natural gas ---- which produce – S-V mismatch; faulty comparison
D. which produce heat more efficiently than natural gas does --- S-V mismatch
E. much more efficient at producing heat than natural gas ---same problem as in A.


Daagh Sir,

The 2 "most helpful experts reply" are contradictory. I found your reply better with only one issue.
You mentioned following -
" 1. Natural gas is a fossil fuel; So there can not be a comparison between fossil fuel and NG "

If we remove the comma, however the comparison is between FF & NG. This makes B the best with only exception of the presence of comma.

Pls help if I am missing something.
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New post 16 May 2019, 03:09
Option D is tempting and explanation in the first reply itself has pointed out the issue which i forgot to loot at.
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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post 16 May 2019, 22:32
[quote="sachinrelan"]Even in this age of conservation, cooking ranges that consume fossil fuels are far more common than those that rely on magnetic resonance, producing heat more efficiently than natural gas.


A. producing heat more efficiently than natural gas

B. producing heat more efficiently than natural gas does

C. which produce heat more efficiently than natural gas

D. which produce heat more efficiently than natural gas does

E. much more efficient at producing heat than natural gas


[spoiler=]What should be the correct answer to this question. ?

I feel it should be Option D.



AjiteshArun : This question is debatable I think. Please clear the air about the usage of comma + ing modifier in option B. What producing actually modifies here? Above mentioned threads say it is not modifying "cooking ranges."
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Re: Even in this age of conservation, cooking ranges that consume fossil  [#permalink]

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New post 18 May 2019, 08:44
AkshdeepS wrote:
AjiteshArun : This question is debatable I think. Please clear the air about the usage of comma + ing modifier in option B. What producing actually modifies here? Above mentioned threads say it is not modifying "cooking ranges."
I agree that producing is not referring to "cooking ranges that consume fossil fuels". This is mainly because a "comma -ING" is not restricted to taking the subject of the sentence as its own subject. At most we could say that it is slightly ambiguous.

The problem I see in option D is that it puts two relative clauses together (XYZ that ABC, which DEF) in a way that (though not strictly wrong) is a little awkward and ends up adding an extra word to the option. That word, which, is also too close to magnetic resonance. Even though produce is plural, I don't think the which is clear enough.

The call remains yours though. However, I'd advise you not to take too much away from this question. Even if this really is an official question, it was clearly made a (really) long time back. Those were simpler days. :)
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Re: Even in this age of conservation, cooking ranges that consume fossil   [#permalink] 18 May 2019, 08:44

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