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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.

This will be true only if EVERY graduate with more than 150-IQ APPLIED for at least 1 ivy-league school. If EVEN ONE of those uber intelligent 150-IQ fellows did not apply for ANY ivy-league, this statement fails.

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.

This is tricky. He/She could have been a student at Topnotch. For sure he/she did not GRADUATE from Topnotch. He/She might have failed and later graduated from somewhere else OR might have simply transferred his/her 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.

This is definitely possible. Because if she/he graduated from Topnotch, for sure he/she has more than 120-IQ. This person can very well be one of those graduates. Note: it is possible for him or her

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. This is tricky AND second most likely choice. Because, we don't know whether he/she has >150IQ, we can't be sure of this. If ALL graduates from TopNotch have an IQ between 119 and 150, exclusive, then it is possible that some could be accepted but there is no guarantee that he HAS been accepted. The question type is must be true and we should make sure that no way the statement can be false. If you present one case that invalidates the statement, reject it.

e.g. If there are 1 million blue balls and 1 yellow ball in a jar. If a man randomly picks a ball, that ball should be blue in color. NOT TRUE for this question type. If a man randomly picks a ball, it is highly likely that ball is blue in color. COULD BE TRUE but eliminate other choices. If a man randomly picks a ball, it cannot be red in color. 100% true. No need for elimination.

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. We need to think a step further. Alright the student has applied and is accepted. Then she changed her mind and went for some non-ivy league school. In this case, she is not attending ivy-league but she applied and was of course accepted.

My approach for this: Don't follow the elimination process. Just tick the right choice and go ahead. I chose "C" because I knew it was correct, I didn't bother to dig into rest of the choices. _________________

Re: CR: Brainy students [#permalink]
03 Aug 2011, 07:53

durgesh79, I liked your reasoning for dropping B, but your reasoning for dropping A is just like missing the forest b/c of the trees. The extreme word EVERY is enough. I.e. not ALL graduates of TN were accepted. Some people may not apply at all; no need to point to issue of "equal and greater than " OR "greater than" 150. However, that's right, too. _________________

Ambition, Motivation and Determination: the three "tion"s that lead to PERFECTION.

World! Respect Iran and Iranians as they respect you! Leave the governments with their own.

Re: CR: Brainy students [#permalink]
03 Aug 2011, 22:22

before reading the questions: all TN has 120+ most 120+ and all 150+ are accepted. now possibilities: 1. there might be a TN with 150+. 2. there might be all TN'S are between 120-150. 3. there can be at least 1 person with 120+ which is from TN.

(A) Every graduate of TopNotch High School with an IQ of 150 has been accepted to at least one Ivy-League school. W-TN MIGHT CONCLUDE ONLY 120-130 OR 120-140 OR 120 TO 149 (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. W-IT REVERSES THE LOGIC OF THE ORIGINAL SENTENCE. IF A (TN) then B(120+). if not A then not B. THE ANSWER CLAIMS IF NOT B THEN NOT A. (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. R- it is possible since all TN are 120+ (possibility 3 bove) (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. W-MOST WITH 120+ ARE ACCEPTED, BUT ID DOES NOT MEAN THAT IT MUST BE A TN WITH 120+. IT CAN BE OTHER SCHOOLS. (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. W- MUST ADMIT. I DID NOT SEE ANY CONNECTION TO THE EVIDENCE IN THE QUESTION.

Re: CR: Brainy students [#permalink]
04 Aug 2011, 02:33

Why not D The text claims that most 120(NOT ALL) and higher accepted.

Lets say that TN has 100 students with 120+. And lets say that total people in the world with 120+ is 10000.

So if most 120+ are accepted it can be from 1-100 TN and from 4901 TO 9998 from others (1 fromTN and 9998 from others (9999 is most of 10000) is still "most" and 100 from TN and and 4901 from others (5001 is most of 10000)

But it can be also 0 from TN and 5001 to 9999 from others, and still holds to the term "most".

so to say that at least 1 student from TN is accepted is False( because we see that accepting O(none) from TN and 5001 i.e from the total applicants is still accepting most 120+)

Re: TopNotch High School And Ivy League [#permalink]
10 Aug 2011, 19:51

I also go with C A-It is most students not every student B-too extreme C- Correct over 120 & in one of Ivy league college D -why at least one when it says most E- not in scope

Re: Everyone who has graduated from TopNotch High School has an [#permalink]
07 Aug 2012, 12:20

yavasani 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. (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.

Student of e-GMAT here. I used their process to come up with the correct answer. However, it definitely took me over the 2 min mark (at around 3 mins and 30 seconds) and this was difficult due to its tricky wording. Nevertheless, here's my process.

Conclusion: MOST students (not all) with an IQ of 120+ and ALL students with 150+ who apply to one or more Ivy League universities get accepted to at least one Ivy League university. Phew...kinda long, but makes a lot of sense.

The only premise we have to work with is that TN Highschool has students with IQs of over 120. Which means that if these students apply to 1+ Ivy league universities, most of them are likely to get into at least one of them.

Basic pre-thinking: I won't lie here, but this was somewhat challenging for me. I came up with some flimsy assumptions in this. I'd love to see what you guys think about them. - IQ is the only factor required here for university admissions with 150+ scores - Students are likely to apply to Ivy league university. (I quickly realised that this was a false assumption and scratched it off).

Alright! With some pre-thinking, I at least had a better idea of the argument, so I could move onto the answer choices.

A. This does not have to be true. Some students may not have applied to an Ivy league university (or any university to begin with). Out. B. Not necessarily true. What if IQ goes down with age? I was great at tennis 10 years ago as a kid, but now I absolutely suck at it (even when playing with a 12 year old). No where in the argument does it state that IQ remains stable with age. C. Yeah. This seems right. D. Well maybe. Let's say that there are 100 students at this school. 99 students decided to start working after high school. The remaining student applied to only one Ivy league university and his score happened to be 125. Although it is likely that he'll get accepted, it is not certain that he will. E. She could have applied but decided not to go.

C is the right choice. I definitely struggled with B and D. First in comprehending what they were saying and then in thinking of cases where the statements could fall apart.

Hope this thorough breakdown of my process helps others.

Re: Everyone who has graduated from TopNotch High School has an [#permalink]
07 Aug 2013, 12:58

To be more precise on E's confusion it can be said acceptance and attendance are two different things, hence its not conclusive. Remember we have to be in the scope of the argument when deriving conclusion. Assumptions is a different game but conclusion has to be substantial. Since answer choice E talks about attendance and argument doesnt we can discard E

Re: CR: Brainy students [#permalink]
08 Aug 2013, 18:24

durgesh79 wrote:

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

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. >> he could be a student of TN highschool ... but he wont graduate from it ... drop

Answer C

Please read the choice more carefully. It says that this fictitious person is already a high school graduate. Whether he will or will not graduate from TopNotch High School is a rather moot point. Already a high school graduate.

Re: Everyone who has graduated from TopNotch High School has an [#permalink]
09 Aug 2013, 01:28

Can anyone modify the sentence D so that it can become a correct answer?

yavasani 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. (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.

Re: Everyone who has graduated from TopNotch High School has an [#permalink]
09 Aug 2013, 01:44

1

This post received KUDOS

haihai89 wrote:

Can anyone modify the sentence D so that it can become a correct answer?

yavasani 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. (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.

Well, the problem with D is that, for example,if only one student applied we can't be 100% sure that he will be accepted. Moreover we do not know nothing about his IQ, which affects his chances. So we need to correct these parts of the answer choice.

(D) At least one graduate -with a QI of over 150- from TopNotch high school who has applied to at least one Ivy-League university has been accepted to one of them.

This works because we know that "students with an IQ of over 150 who apply to one or more Ivy League universities are accepted to at least one of them"; I removed "at least one" also because ALL 150+ students who apply are accepted, not at least one.

I think this would work because it's basically a rewording of the later part of the second sentence. _________________

It is beyond a doubt that all our knowledge that begins with experience.

Re: Everyone who has graduated from TopNotch High School has an [#permalink]
09 Aug 2013, 17:32

Dear Zarrolou, Thanks for your explanation. You said that we know nothing about his IQ, but from the question, we have already known that he must have IQ of over 120. Furthermore, "most students with an IQ of over 120...are accepted...". So I infer that among all TN students who applied to Ivy League uni., there will be at leat one accepted. For the OA C, I just wonder that "it is possible for him or her to have graduated from TopNotch High School." is not a good conclusion (I donot say that it's wrong) because he or she can be from any high school in the world. Above is my few thoughts. Correct me if I'm wrong. Again, thanks guy!

Zarrolou wrote:

haihai89 wrote:

Can anyone modify the sentence D so that it can become a correct answer?

yavasani 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. (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.

Well, the problem with D is that, for example,if only one student applied we can't be 100% sure that he will be accepted. Moreover we do not know nothing about his IQ, which affects his chances. So we need to correct these parts of the answer choice.

(D) At least one graduate -with a QI of over 150- from TopNotch high school who has applied to at least one Ivy-League university has been accepted to one of them.

This works because we know that "students with an IQ of over 150 who apply to one or more Ivy League universities are accepted to at least one of them"; I removed "at least one" also because ALL 150+ students who apply are accepted, not at least one.

I think this would work because it's basically a rewording of the later part of the second sentence.

gmatclubot

Re: Everyone who has graduated from TopNotch High School has an
[#permalink]
09 Aug 2013, 17:32