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Many utilities obtain most of their electric power from large coal and

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Many utilities obtain most of their electric power from large coal and  [#permalink]

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New post 20 Jun 2018, 21:13
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Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.


A. two to three times higher as that of power from smaller, more efficient plants that can both

B. higher by two to three times as that from smaller, more efficient plants that both can

C. two to three times higher than those for power from smaller, more efficient plants that can both

D. between two to three times higher as those for power from smaller, more efficient plants that both can

E. between two to three times higher than from smaller, more efficient plants that they can both


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(SC01077)

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Re: Many utilities obtain most of their electric power from large coal and  [#permalink]

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New post 20 Jun 2018, 22:18
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Clear C it is

A. two to three times higher as that of power from smaller, more efficient plants that can both. Comparative form requires than in place of as

B. higher by two to three times as that from smaller, more efficient plants that both can. Comparative form requires than in place of as


C. two to three times higher than those for power from smaller, more efficient plants that can both. Correctly uses than and in the end use of both make the sentence parallel.

D. between two to three times higher as those for power from smaller, more efficient plants that both can[color=#ed1c24]Comparative form requires than in place of as
[/color]

E. between two to three times higher than from smaller, more efficient plants that they can bothbetween X and Y correct idiom.
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Re: Many utilities obtain most of their electric power from large coal and  [#permalink]

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New post 21 Jun 2018, 03:56
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Answer C.

A. two to three times higher as that of power from smaller, more efficient plants that can both

B. higher by two to three times as that from smaller, more efficient plants that both can

C. two to three times higher than those for power from smaller, more efficient plants that can both

D. between two to three times higher as those for power from smaller, more efficient plants that both can

E. between two to three times higher than from smaller, more efficient plants that they can both


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Re: Many utilities obtain most of their electric power from large coal and  [#permalink]

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New post 21 Jun 2018, 04:38
Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.


A. two to three times higher as that of power from smaller, more efficient plants that can both

B. higher by two to three times as that from smaller, more efficient plants that both can

C. two to three times higher than those for power from smaller, more efficient plants that can both --> correct

D. between two to three times higher as those for power from smaller, more efficient plants that both can

E. between two to three times higher than from smaller, more efficient plants that they can both
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Re: Many utilities obtain most of their electric power from large coal and  [#permalink]

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New post 21 Jun 2018, 05:00
Bunuel wrote:
Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.


A. two to three times higher as that of power from smaller, more efficient plants that can both

B. higher by two to three times as that from smaller, more efficient plants that both can

C. two to three times higher than those for power from smaller, more efficient plants that can both

D. between two to three times higher as those for power from smaller, more efficient plants that both can

E. between two to three times higher than from smaller, more efficient plants that they can both


NEW question from GMAT® Official Guide 2019


(SC01077)


1) Higher is comparative so requires THAN..
2) THOSE is the correct pronoun for costs in " higher than THOSE for power from smaller....
3) can is common to both items - make use... and take advantage....
So it should be .. that can both ....in the underlined portion

Only C Corrects the above errors..

C
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Many utilities obtain most of their electric power from large coal and  [#permalink]

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New post Updated on: 12 Jul 2018, 12:41
Hello Everyone!

Let's tackle this question one problem at a time and narrow it down to the correct answer!

Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.

A. two to three times higher as that of power from smaller, more efficient plants that can both
B. higher by two to three times as that from smaller, more efficient plants that both can
C. two to three times higher than those for power from smaller, more efficient plants that can both
D. between two to three times higher as those for power from smaller, more efficient plants that both can
E. between two to three times higher than from smaller, more efficient plants that they can both

After doing a quick scan of the answers, there are a few clear differences between each answer we need to address:

1. Using "as that" versus "than" in a comparison
2. Pronoun-antecedent agreement
3. The use of "between"

First, let's look at the use of "as that" versus "than." These two options are both tied to the comparative word "higher." We know that, whenever we use the comparative, it MUST be followed by the word "than."

The tree will grow higher as that of the roof. --> WRONG
The tree will grow higher than the roof. --> CORRECT

This means we can eliminate options A, B, and D right away because they all use "higher as" instead of "higher than."

Now we've narrowed it down to just C and E, so let's focus on the differences between them:

C. two to three times higher than those for power from smaller, more efficient plants that can both

The pronoun those is clearly referring back to "costs." This option is CORRECT because the pronoun and antecedent reference is clear and in agreement.

E. between two to three times higher than from smaller, more efficient plants that they can both

Answer E is INCORRECT for a couple reasons.

First, saying that the costs are "between two to three times higher" is redundant, which is a big no-no on the GMAT.

Second, the pronoun they doesn't make sense where it's placed. It's unclear what they is referring to: the utilities, the power, the costs, etc.? This vague pronoun is another no-no on the GMAT, so this is clearly not the right answer.

That leaves us with C as the correct answer!


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Originally posted by EMPOWERgmatVerbal on 22 Jun 2018, 15:47.
Last edited by EMPOWERgmatVerbal on 12 Jul 2018, 12:41, edited 1 time in total.
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Re: Many utilities obtain most of their electric power from large coal and  [#permalink]

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New post 22 Jun 2018, 19:40
Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.


A. two to three times higher as that of power from smaller, more efficient plants that can both

Comparison - X higher than Y - is the correct use. "as" is incorrect.
Also "that of power" is incorrect. Costs - is plural so we need "those".Incorrect


B. higher by two to three times as that from smaller, more efficient plants that both can
Same Error as in A

C. two to three times higher than those for power from smaller, more efficient plants that can both
Eliminates all the error.
but notice the use of phrase after comma - more efficient plants that can both
Its intended meaning is -
more efficient plants that can both make use of waste heat.
and
more efficient plants that can take advantage of the current abundance of natural gas.


D. between two to three times higher as those for power from smaller, more efficient plants that both can
Use of "between" is incorrect. Use of "as" is also incorrect.

E. between two to three times higher than from smaller, more efficient plants that they can both
Use of "between" is incorrect.
Illogical comparison.


Ans - C
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Many utilities obtain most of their electric power from large coal and  [#permalink]

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New post 03 Jul 2018, 02:17
Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.


A. two to three times higher as that of power from smaller, more efficient plants that can both should be higher...than

B. higher by two to three times as that from smaller, more efficient plants that both can should be higher...than

C. two to three times higher than those for power from smaller, more efficient plants that can both

D. between two to three times higher as those for power from smaller, more efficient plants that both can should be higher...than. between...to is wrong

E. between two to three times higher than from smaller, more efficient plants that they can both between...to is wrong
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Many utilities obtain most of their electric power from large coal and &nbs [#permalink] 03 Jul 2018, 02:17
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