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Everyone who has graduated from TopNotch High School has an

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Everyone who has graduated from TopNotch High School has an [#permalink] New post 03 Nov 2007, 10:04
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Everyone who has graduated from TopNotch High School has an intelligence quotient (IQ) of over 120. Most students with an IQ of over 120 and all students with an IQ of over 150 who apply to one or more Ivy League universities are accepted to at least one of them.

The statements above, if true, best support which of the following conclusions?

A- Every graduate of TopNotch High School with an IQ of 150 has been accepted to at least one Ivy-League school.
B- If a person is a high-school graduate and has an IQ of less than 100, he or she could not have been a student at TopNotch High School.
C- If a person has an IQ of 130 and is attending an Ivy-League school, it is possible for him or her to have graduated from TopNotch High School.
D- At least one graduate from TopNotch high school who has applied to at least one Ivy-League university has been accepted to one of them.
E- If a high-school graduate has an IQ of 150 and is not attending an Ivy-League school, then he or she did not apply to one of them.
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 [#permalink] New post 03 Nov 2007, 10:05
i dont get this, to me both B and C seem correct
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 [#permalink] New post 03 Nov 2007, 10:32
This one is really tricky because 3 almost seem correct to me. Trick is in the over 150 in the passage.

A- Every graduate of TopNotch High School with an IQ of 150 has been accepted to at least one Ivy-League school.
Not correct. Only students with over 150 make it for sure. Not students with 150.

B- If a person is a high-school graduate and has an IQ of less than 100, he or she could not have been a student at TopNotch High School.
Correct. Limit is 120, so student could not have graduated from TopNotch HS.

C- If a person has an IQ of 130 and is attending an Ivy-League school, it is possible for him or her to have graduated from TopNotch High School.
Not correct. While it could have been possible, we are trying to find the one that best supports the conclusion. I think B does this by far.

D- At least one graduate from TopNotch high school who has applied to at least one Ivy-League university has been accepted to one of them.
Not correct. We know that they hat at least an IQ of 120, so maybe they got it. Since we don't know if they have students with an IQ of 150, we would be assuming to much.

E- If a high-school graduate has an IQ of 150 and is not attending an Ivy-League school, then he or she did not apply to one of them.
Not correct. It was a tough one for me because I was overlooking the over 150 in the passage. Maybe he/she applied, but since the IQ was not over 150 got rejected.

What do you guys think?
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Re: CR: ivy league school [#permalink] New post 04 Nov 2007, 06:37
jimjohn wrote:
Everyone who has graduated from TopNotch High School has an intelligence quotient (IQ) of over 120. Most students with an IQ of over 120 and all students with an IQ of over 150 who apply to one or more Ivy League universities are accepted to at least one of them.

The statements above, if true, best support which of the following conclusions?

A- Every graduate of TopNotch High School with an IQ of 150 has been accepted to at least one Ivy-League school.
--We cannot say this because the choice does not say that the student has applied to atleast one Ivy League school. Incorrect.

B- If a person is a high-school graduate and has an IQ of less than 100, he or she could not have been a student at TopNotch High School.
-could be possible, iffy though, incorrect

C- If a person has an IQ of 130 and is attending an Ivy-League school, it is possible for him or her to have graduated from TopNotch High School.
--could be possible, iffy again, incorrect

D- At least one graduate from TopNotch high school who has applied to at least one Ivy-League university has been accepted to one of them.
--I think this is definitely true. This is just a paraphrase of the above argument. Graduate from TopNotch school-->IQ over 120. Part of the argument says:
Most students with an IQ of over 120 who apply to one or more Ivy League universities are accepted to at least one of them

E- If a high-school graduate has an IQ of 150 and is not attending an Ivy-League school, then he or she did not apply to one of them.
--How can you say this? Incorrect.


What is the OA?
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 [#permalink] New post 04 Nov 2007, 07:24
OA was C

A) The passage states that every student with an IQ of 150 who applies to the Ivy League will be accepted by at least one of the universities. However, it is possible that a graduate of TopNotch High with an IQ of 150 did not apply, and thereby was not accepted, to any of the schools. Hence, this conclusion is not valid.

(B) The passage states that every graduate of TopNotch High has an IQ of over 120. The conclusion only states that the student is a high school graduate and that he has an IQ of less than 120. It does NOT state that he or she was a graduate of TopNotch High. It is possible, however, that after attending TopNotch High for a period of time, he or she graduated from another high school. If this is the case, the situation does not contradict the passage, but contradicts the conclusion (he or she was a student at TopNotch High). Hence, this conclusion is not valid.

(C) CORRECT. Nothing in the passage precludes a person who is a graduate of TopNotch High from having an IQ of 130 and from attending an Ivy League university. Neither does anything in the passage preclude a person who has an IQ of 130 and is attending an Ivy League school to have graduated from TopNotch High. Therefore, it is possible for both situations to exist simultaneously, so the conclusion is valid.

(D) The conclusion states that most, but not necessarily all, of the graduates from TopNotch High with IQ of 120 who apply to the Ivy League are accepted by at least one of the school. The conclusion, however, does not state positively that any of the TopNotch High graduates had an IQ of over 150. Hence, even if it is unlikely, it is possible that none of the TopNotch graduates had IQ of over 150, and, of the remaining graduates who applied to the Ivy League, none were accepted to an Ivy League university. This conclusion is thereby not valid.

(E) The passage states that any student with an IQ of 150 who applies to one or more Ivy League universities will be accepted to at least one of them. It is possible, however, that some of those who had applied and been accepted to an Ivy League university chose not to attend. Hence, this conclusion is not valid.
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 [#permalink] New post 05 Nov 2007, 00:18
I guess it never occured to me that someone could go to TopNotch HS and fail because his IQ was less than the needed to pass and graduate.
  [#permalink] 05 Nov 2007, 00:18
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