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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
40% (02:05) correct
60%
(02:05)
wrong
based on 2234
sessions
History
Date
Time
Result
Not Attempted Yet
A zero-CO2 U.S. economy can be achieved within the next thirty to fifty years without the use of nuclear power. The U.S. renewable energy resource base is vast and practically untapped. Available wind energy resources in 12 Midwestern and Rocky Mountain states equal about 2.5 times the entire electricity production of the United States. Given that we can satisfy our electricity needs by harnessing only 40% of the wind energy resources in these 12 states, it is extremely likely that we will be able to do away with CO2.
Which of the following would be most useful to evaluate the above argument?
A. What is the amount of wind energy resources available in rest of the states in the United States?
B. Are there any other renewable energy resources such as solar power, which can be used?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
E. What proportion of wind energy is available only at inaccessible areas?
Which of the following would be most useful to evaluate the above argument?
A. What is the amount of wind energy resources available in rest of the states in the United States?
B. Are there any other renewable energy resources such as solar power, which can be used?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
E. What proportion of wind energy is available only at inaccessible areas?
Hi Everyone,
Here's another question from e-GMAT. It is an evaluate question type, which, as experience of recent test takers suggest, is becoming more important on GMAT.
Share your answers with analysis. Looking forward to a healthy discussion
-Chiranjeev Singh
Here's another question from e-GMAT. It is an evaluate question type, which, as experience of recent test takers suggest, is becoming more important on GMAT.
Share your answers with analysis. Looking forward to a healthy discussion
-Chiranjeev Singh
06 Sep 2013, 03:16
Kudos
Bookmarks
heman2727
egmat
OA has been posted. It is option E. People in this thread who chose option E have given correct explanations for the same.
Let me know if anyone still has doubts
Thanks,
Chiranjeev
Let me know if anyone still has doubts
Thanks,
Chiranjeev
Can we discuss why C is not the correct answer. I want to discuss so that I can have more clear thought process.
Regards,
Himanshu
Good that you brought this up. A lot of students marked choice C.
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
So, option C asks what proportion of electricity can be stored?
Now, tell me what proportion do we want?
The answer is: We don't know.
Nowhere the passage talks about the times in which wind is not blowing. If the passage had said. let's say, that the wind does not blow for one month every year, then in that case, we would have wanted to store 1/11th of the electricity. In that case, it might have made sense to know how much electricity we can store.
But the given passage does not talk about a scenario in which the wind does not blow. Rather, we don't even know if there is a period in which doesn't blow. Probably, the wind blows all the time. We don't know. In such a scenario, option C does not help us evaluate the argument.
On the other hand, option E is extremely relevant to the argument. We require 40% of wind energy. Right? How much can we access? Less than or more than 40%? This is what option E asks.
Frankly, option C was specially crafted with a lot of relevant and common sense words to confuse students
and placed before the correct choice so that when students read the correct choice, they read it with a bias against the correct choice (because in their mind, they have already found the correct choice) Thanks,
Chiranjeev
02 Sep 2013, 14:37
Kudos
Bookmarks
egmat
Hi Everyone,
Here's another question from e-GMAT. It is an evaluate question type, which, as experience of recent test takers suggest, is becoming more important on GMAT.
Share your answers with analysis. Looking forward to a health discussion
A zero-CO2 U.S. economy can be achieved within the next thirty to fifty years without the use of nuclear power. The U.S. renewable energy resource base is vast and practically untapped. Available wind energy resources in 12 Midwestern and Rocky Mountain states equal about 2.5 times the entire electricity production of the United States. Given that we can satisfy our electricity needs by harnessing only 40% of the wind energy resources in these 12 states, it is extremely likely that we will be able to do away with CO2.
Which of the following would be most useful to evaluate the above argument?
A. What is the amount of wind energy resources available in rest of the states in the United States?
B. Are there any other renewable energy resources such as solar power, which can be used?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
E. What proportion of wind energy is available only at inaccessible areas?
-Chiranjeev Singh
Here's another question from e-GMAT. It is an evaluate question type, which, as experience of recent test takers suggest, is becoming more important on GMAT.
Share your answers with analysis. Looking forward to a health discussion
A zero-CO2 U.S. economy can be achieved within the next thirty to fifty years without the use of nuclear power. The U.S. renewable energy resource base is vast and practically untapped. Available wind energy resources in 12 Midwestern and Rocky Mountain states equal about 2.5 times the entire electricity production of the United States. Given that we can satisfy our electricity needs by harnessing only 40% of the wind energy resources in these 12 states, it is extremely likely that we will be able to do away with CO2.
Which of the following would be most useful to evaluate the above argument?
A. What is the amount of wind energy resources available in rest of the states in the United States?
B. Are there any other renewable energy resources such as solar power, which can be used?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
E. What proportion of wind energy is available only at inaccessible areas?
-Chiranjeev Singh
The question stems talks about the US achieving a zero CO2 economy in the next 30 to 50 years. Wind energy seems to be a viable source of alternative energy and that it is extremely likely that the US will be able to do away with CO2. The assumption behind this argument is that the demand for the use of energy would not have exceeded the current amount of energy that wind can generate in the next 30 years. Who knows? There may be some other assumptions that I have not considered. But at least I understand the prompt and the right answer is likely to jump at me.
A. What is the amount of wind energy resources available in rest of the states in the United States?
Well, we already the amount of wind energy that is available. The question is how viable is the current wind energy that we have even discovered? Can we use it? This option is irrelevant.
B. Are there any other renewable energy resources such as solar power, which can be used?
We have not finished using wind energy. So this opion has nothing to do with the argument since we already know that wind energy is enough to meet with our needs. Why look to the sun?
C. With the use of current technologies, what proportion of electricity generated through wind energy can be stored for use at future times when wind may not be blowing?
This options looks popular but I disagree with it. We are talking about achieving zero CO2 economy in 30 years or so. What has current technology got to do with it? I-phone 5 will be an obsolete technology in 3 years time, not to talk of 30.
D. Are there strong corporate lobbies which will strongly oppose any move to substitute non-renewable sources of energy?
Quite trickish. Not all lobbies are successful. Popular demand can throw lobbies into a tailspin. But we need to do the acid test. If we answer yes to the question, it looks as if the argument may no longer hold. What if we answer no? Makes no difference; it doesn't make the argument stronger in any way. We still need to know if we can even use the wind.
E. What proportion of wind energy is available only at inaccessible areas?
There you go! If the proportion of the wind that is available in inaccessible area is very , low, say 5%, then that means 95% of the wind is available for use. What if only 1% of the wind is accessible for use and the remaining 99% is 100,000 feet above sea level? That means all the wind energy discovered is not even available.
I am 95% sure the answer is E.
