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score780
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Accuracy of Kaplan verbal questions 09 Sep 2012, 14:11
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i was going through CR questions in the Kaplan Premier book, the first set of questions in the book. The answers and the explanations are many times inaccurate. Who makes these questions? are they extracted from previous gmat tests? Honestly it becomes quite frustrating dealing with such cases!

Here is an example:

According to a recent study, a diet that is free of meat and diary products greatly reduces the risk of suffering a hear attack. The study cites the fact that only 10% of those who consume such a diet suffer a heart attack at some point in their lives.

Which if the following would most seriously weaken the argument above ?

A) Diets free of meat and diary are low in calcium, which can lead to bone density decreases.

B) Those who consume only diary but not meat are twice as likely to suffer a heart attack as those who consume neither
meat nor diary.

C) Some people who consume neither diary nor meat suffer 2 or more heart attacks over the course of a lifetime.

D) Meat and diary products are high in low-density cholesterol,which is known to harden arteries and cause other heart
problems.

E) 7% of those who consume dairy and meat regularly suffer heart attacks over the course of their lifetime.

The answer is E, while for me, the fact that in E it is mentioned that those who consume "regularly suffer" while in the argument speaks about those who consume "suffer[...]at some point", makes E not relevant. Am i being too picky? :shock:
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Accuracy of Kaplan verbal questions 09 Sep 2012, 17:15
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First of all, It is a good manner to tag the post and provide the OA

Back to your question, fo rme is a good question for practice

E is the answer. here is the same post

according-to-a-recent-study-a-diet-that-is-free-of-meat-and-133786.html

Hope this helps
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Accuracy of Kaplan verbal questions 09 Sep 2012, 19:22
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i was going through CR questions in the Kaplan Premier book, the first set of questions in the book. The answers and the explanations are many times inaccurate. Who makes these questions? are they extracted from previous gmat tests? Honestly it becomes quite frustrating dealing with such cases!

Here is an example:

According to a recent study, a diet that is free of meat and diary products greatly reduces the risk of suffering a hear attack. The study cites the fact that only 10% of those who consume such a diet suffer a heart attack at some point in their lives.

Which if the following would most seriously weaken the argument above ?

A) Diets free of meat and diary are low in calcium, which can lead to bone density decreases.

B) Those who consume only diary but not meat are twice as likely to suffer a heart attack as those who consume neither
meat nor diary.

C) Some people who consume neither diary nor meat suffer 2 or more heart attacks over the course of a lifetime.

D) Meat and diary products are high in low-density cholesterol,which is known to harden arteries and cause other heart
problems.

E) 7% of those who consume dairy and meat regularly suffer heart attacks over the course of their lifetime.

The answer is E, while for me, the fact that in E it is mentioned that those who consume "regularly suffer" while in the argument speaks about those who consume "suffer[...]at some point", makes E not relevant. Am i being too picky? :shock:
Show more
This is a great example of how modifiers can be unclear on a GMAT sentence correction--"regularly" is an adverb that is meant to modify the noun "consume," but because it is misplaced, it accidentally modifies "suffers" instead!

I apologize for the grammar error--however, I'd also point out that we've corrected this problem, and it's no longer in the most recent edition of Kaplan Premier!

Regards,

Eli
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Accuracy of Kaplan verbal questions 10 Sep 2012, 09:22
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i was going through CR questions in the Kaplan Premier book, the first set of questions in the book. The answers and the explanations are many times inaccurate. Who makes these questions? are they extracted from previous gmat tests? Honestly it becomes quite frustrating dealing with such cases!

Here is an example:

According to a recent study, a diet that is free of meat and diary products greatly reduces the risk of suffering a hear attack. The study cites the fact that only 10% of those who consume such a diet suffer a heart attack at some point in their lives.

Which if the following would most seriously weaken the argument above ?

A) Diets free of meat and diary are low in calcium, which can lead to bone density decreases.

B) Those who consume only diary but not meat are twice as likely to suffer a heart attack as those who consume neither
meat nor diary.

C) Some people who consume neither diary nor meat suffer 2 or more heart attacks over the course of a lifetime.

D) Meat and diary products are high in low-density cholesterol,which is known to harden arteries and cause other heart
problems.

E) 7% of those who consume dairy and meat regularly suffer heart attacks over the course of their lifetime.

The answer is E, while for me, the fact that in E it is mentioned that those who consume "regularly suffer" while in the argument speaks about those who consume "suffer[...]at some point", makes E not relevant. Am i being too picky? :shock:
This is a great example of how modifiers can be unclear on a GMAT sentence correction--"regularly" is an adverb that is meant to modify the noun "consume," but because it is misplaced, it accidentally modifies "suffers" instead!

I apologize for the grammar error--however, I'd also point out that we've corrected this problem, and it's no longer in the most recent edition of Kaplan Premier!

Regards,

Eli
Show more


Ohhh...i should've noticed this. Bro, i have another question that is baffling me from your book.

A recently published article on human physiology claims that Enzyme K contributes to improved performance in strenuous activities such as weightlifting and sprinting. The Article cites evidence of above-average levels of enzyme K in Olympic weight lifters and sprinters.

Which of the following, if true,would most strengthen the article's conclusion?

a ) Enzyme K levels tend to peak when people feel most alert
b ) Enzyme K has no other function in the human body
c ) Enzyme K is required for the performance of strenuous activities.
d ) Enzyme K helps weight lifters more than it helps sprinters.
e) Strenuous activities do not cause the human body to produce unusually high levels of enzyme K

Do you really agree that E as an answer "most strengthens the article's conclusion'?
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Accuracy of Kaplan verbal questions 10 Sep 2012, 09:24
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First of all, It is a good manner to tag the post and provide the OA

Back to your question, fo rme is a good question for practice

E is the answer. here is the same post

according-to-a-recent-study-a-diet-that-is-free-of-meat-and-133786.html

Hope this helps
Show more

i don't know hot to tag and can't find the button! can you help?

thank you for the link, i had seen it, however i am asking about a different aspect related to the answer. it seems there's a mistake in the modifier
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Accuracy of Kaplan verbal questions 10 Sep 2012, 10:22
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Ohhh...i should've noticed this. Bro, i have another question that is baffling me from your book.

A recently published article on human physiology claims that Enzyme K contributes to improved performance in strenuous activities such as weightlifting and sprinting. The Article cites evidence of above-average levels of enzyme K in Olympic weight lifters and sprinters.

Which of the following, if true,would most strengthen the article's conclusion?

a ) Enzyme K levels tend to peak when people feel most alert
b ) Enzyme K has no other function in the human body
c ) Enzyme K is required for the performance of strenuous activities.
d ) Enzyme K helps weight lifters more than it helps sprinters.
e) Strenuous activities do not cause the human body to produce unusually high levels of enzyme K

Do you really agree that E as an answer "most strengthens the article's conclusion'?
Show more

Well this is a very common - Cause and Effect Reasoning, where in a correct option will prove that since x caused y, y cannot cause X.

in this example as per stimulus - "X" = Enzyme K which causes "Y" = Improved performance in strenuous activities such as weightlifting.

(E) Says "Y" = strenuous activities CANNOT cause "X" = Enzyme K; thus strengthening the conclusion.

In such CR problems, if you can prove that Cause / Effect reasoning as mentioned in the stimulus is the only correct causation of something, than that answers is the correct answer. (I hope I am making myself understandable to you.)
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Accuracy of Kaplan verbal questions 10 Sep 2012, 10:28
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i was going through CR questions in the Kaplan Premier book, the first set of questions in the book. The answers and the explanations are many times inaccurate. Who makes these questions? are they extracted from previous gmat tests? Honestly it becomes quite frustrating dealing with such cases!

Here is an example:

According to a recent study, a diet that is free of meat and diary products greatly reduces the risk of suffering a hear attack. The study cites the fact that only 10% of those who consume such a diet suffer a heart attack at some point in their lives.

Which if the following would most seriously weaken the argument above ?

A) Diets free of meat and diary are low in calcium, which can lead to bone density decreases.

B) Those who consume only diary but not meat are twice as likely to suffer a heart attack as those who consume neither
meat nor diary.

C) Some people who consume neither diary nor meat suffer 2 or more heart attacks over the course of a lifetime.

D) Meat and diary products are high in low-density cholesterol,which is known to harden arteries and cause other heart
problems.

E) 7% of those who consume dairy and meat regularly suffer heart attacks over the course of their lifetime.

The answer is E, while for me, the fact that in E it is mentioned that those who consume "regularly suffer" while in the argument speaks about those who consume "suffer[...]at some point", makes E not relevant. Am i being too picky? :shock:
This is a great example of how modifiers can be unclear on a GMAT sentence correction--"regularly" is an adverb that is meant to modify the noun "consume," but because it is misplaced, it accidentally modifies "suffers" instead!

I apologize for the grammar error--however, I'd also point out that we've corrected this problem, and it's no longer in the most recent edition of Kaplan Premier!

Regards,

Eli


Ohhh...i should've noticed this. Bro, i have another question that is baffling me from your book.

A recently published article on human physiology claims that Enzyme K contributes to improved performance in strenuous activities such as weightlifting and sprinting. The Article cites evidence of above-average levels of enzyme K in Olympic weight lifters and sprinters.

Which of the following, if true,would most strengthen the article's conclusion?

a ) Enzyme K levels tend to peak when people feel most alert
b ) Enzyme K has no other function in the human body
c ) Enzyme K is required for the performance of strenuous activities.
d ) Enzyme K helps weight lifters more than it helps sprinters.
e) Strenuous activities do not cause the human body to produce unusually high levels of enzyme K

Do you really agree that E as an answer "most strengthens the article's conclusion'?
Show more
Absolutely. This is a classic GMAT argument structure. Whenever your evidence is "X and Y happen at the same time," and your conclusion is "X is the cause of Y," you always have to wonder if you're wrong--what if "Y is the cause of X" instead?

For example, if I tell you that cancer patients are disproportionately likely to smoke cigarettes, and I then conclude that cancer clearly predisposes people to nicotine addiction, would you believer me? Of course not! Cigarettes cause cancer, not the other way around.

The question you've cited is a strengthener. Since most "causality" arguments have the possibility of reversal lurking over them, we can strengthen those argument by eliminating that alternate explanation. And that's exactly what answer choice (E) does.
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Accuracy of Kaplan verbal questions 11 Sep 2012, 14:54
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i was going through CR questions in the Kaplan Premier book, the first set of questions in the book. The answers and the explanations are many times inaccurate. Who makes these questions? are they extracted from previous gmat tests? Honestly it becomes quite frustrating dealing with such cases!

Here is an example:

According to a recent study, a diet that is free of meat and diary products greatly reduces the risk of suffering a hear attack. The study cites the fact that only 10% of those who consume such a diet suffer a heart attack at some point in their lives.

Which if the following would most seriously weaken the argument above ?

A) Diets free of meat and diary are low in calcium, which can lead to bone density decreases.

B) Those who consume only diary but not meat are twice as likely to suffer a heart attack as those who consume neither
meat nor diary.

C) Some people who consume neither diary nor meat suffer 2 or more heart attacks over the course of a lifetime.

D) Meat and diary products are high in low-density cholesterol,which is known to harden arteries and cause other heart
problems.

E) 7% of those who consume dairy and meat regularly suffer heart attacks over the course of their lifetime.

The answer is E, while for me, the fact that in E it is mentioned that those who consume "regularly suffer" while in the argument speaks about those who consume "suffer[...]at some point", makes E not relevant. Am i being too picky? :shock:
This is a great example of how modifiers can be unclear on a GMAT sentence correction--"regularly" is an adverb that is meant to modify the noun "consume," but because it is misplaced, it accidentally modifies "suffers" instead!

I apologize for the grammar error--however, I'd also point out that we've corrected this problem, and it's no longer in the most recent edition of Kaplan Premier!

Regards,

Eli


Ohhh...i should've noticed this. Bro, i have another question that is baffling me from your book.

A recently published article on human physiology claims that Enzyme K contributes to improved performance in strenuous activities such as weightlifting and sprinting. The Article cites evidence of above-average levels of enzyme K in Olympic weight lifters and sprinters.

Which of the following, if true,would most strengthen the article's conclusion?

a ) Enzyme K levels tend to peak when people feel most alert
b ) Enzyme K has no other function in the human body
c ) Enzyme K is required for the performance of strenuous activities.
d ) Enzyme K helps weight lifters more than it helps sprinters.
e) Strenuous activities do not cause the human body to produce unusually high levels of enzyme K

Do you really agree that E as an answer "most strengthens the article's conclusion'?
Absolutely. This is a classic GMAT argument structure. Whenever your evidence is "X and Y happen at the same time," and your conclusion is "X is the cause of Y," you always have to wonder if you're wrong--what if "Y is the cause of X" instead?

For example, if I tell you that cancer patients are disproportionately likely to smoke cigarettes, and I then conclude that cancer clearly predisposes people to nicotine addiction, would you believer me? Of course not! Cigarettes cause cancer, not the other way around.

The question you've cited is a strengthener. Since most "causality" arguments have the possibility of reversal lurking over them, we can strengthen those argument by eliminating that alternate explanation. And that's exactly what answer choice (E) does.
Show more


thank you for the explanation! you are referring to a "classic GMAT structure" and i understand doing that since GMAT questions many times follow a clear structure. However my point is whether in this specific example this answer really strengthens the conclusion. Yes, evidence is that X and Y happen together and conclusion is "X is the cause of Y". Does this mean that when saying "Y is not the cause of X" the conclusion that "X is the cause of Y" is strengthened. i don't believe so because if X and Y happen together it does not have to be that one is causing the other. they can be randomly happening together and caused by other unknown reasons. the fact that they happen together does not mean there is causality, it means there is a correlation and saying that the second does not cause the first does not strengthen the fact that the first causes the second.

The example you gave is a good one however it refers to the preconceived idea of smoking causing cancer. That's why when you say that "cancer predisposed people to nicotine addiction", it sounds illogical.
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