Critical Reasoning

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 by 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 by at least one Ivy-League university.
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 university, 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 university, then he or she did not apply to one of them.

clock60 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 by 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 by at least one Ivy-League university.
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 university, 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 university, then he or she did not apply to one of them.

IMO C.

From Top High school Most > 120, All > 150 into one of the Ivy League B-schools.

A: Every --> is the suspect. Every one with 150 from a Top Notch high school may or may not join B school.

B: Not mentioned that ALL from top notch school is > 120 IQ.

C: Left after POE. So diplomatic non debatable word "possible" is used.

D: The one graduate from TopNotch high school who has applied to at least one Ivy-League university may or may not have IQ > 120.

E: IQ of 150 is no guarantee that if he applies he gets. Premises IQ > 150 not IQ = 150.

hi shovan85
thank you for reply oa is C
but can you elaborate why A is wrong.

IMO C.Good question but not as tough as LSAT q's.

Evidence:

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 by at least one of them.

A) There is a caveat to this answer choice. What if none of the graduates of this High School applied to an ivy league? The statement only says that "all students with an IQ of over 150 who apply to one or more Ivy League"

This is too strong.

B) This too is incorrect because the statement only says that "Everyone who has graduated from TopNotch High School has an intelligence quotient (IQ) of over 120".What if that particular student was expelled from that school,after 1 year,because he performed poorly. He was not a graduate of the high school,but he could still have been a student of that school.

Too strong

C) The mild language saves this answer choice. The first statement says that " all graduates from this high school have an IQ higher than 120".The second statement says that " of those who apply most of the students who have IQ higher than 120 get selected by atleast 1 ivy league".

Let's assume there are 100 graduates from this high school.
We know for sure that all have an IQ higher than 120.

Let us assume 50 applies to ivy leagues.
Then (most) lest assume 26 got accepted to atleast 1 ivy league.

But we know that 74 didn't get accepted to any ivy-league.

So we can infer C.

D) This is extreme answer choice.

Lets assume there is only 1 student at this high school.
we know for sure that he has an IQ of 120 or higher.

Lets assume 100 students of 120 IQ or more applied to ivy league.
We know atleast 51 got accepted.

Is it possible that this 1 student from Top Notch high school was among the 49 rejected applicants? Yes

So incorrect.

E) This too is an extreme answer choice.The word that makes this answer choice incorrect is "an Ivy League University".If it were 'any Ivy League University" it would have been correct.

lets assume there is a student,whose name lets say is A

Let's assume there are three Ivy League Universities :MIT,Stanford,and Wharton.

We know for sure from statement "all students with an IQ of over 150 who apply to one or more Ivy League universities are accepted by at least one of them" that he got into atleast 1 ivy league university.

Let's assume he got into Stanford but got rejected by Wharton and MIT.

So,he definitely is not attending MIT.right?

Did he apply to MIT? Yes.

Therefore,E too is extreme.

What is OA?

@clock60

I hope you found my explanation helpful.

Thank me,if you like my explanation

My motto :No answer in CR is wrong because I think so.There is a reason for why each incorrect answer is wrong.If you wanna succeed train your brain to find those reasons.

LSAT teaches me to do so...

clock60 wrote:hi shovan85
thank you for reply oa is C
but can you elaborate why A is wrong.

As per A, the word Everyone is a strong usage.

See the two bold part of the passage...

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 by at least one of them.

Now see the option A....

Every graduate of TopNotch High School with an IQ of 150 has been accepted by at least one Ivy-League university.

Now you tell me where it is mentioned that Every Graduate (from Top High school + 150 IQ) are applying to at least one Ivy-League university.

Two points noted:

1. The Graduate must apply to the B-school.
2. All IQ over 150 are selected not equal to (with) 150.

you guys make a great job here
thanks to both!
crucial note here "who apply" and i missed this point and got A

120<IQ<=150 Not 100%, but mostly who have graduated from top-notch-High school.
IQ>150 This is universally true for all students'


Only C falls in this category.

Option A is tempting. But for this to be true graduate with IQ 150 must have applied to one or MORE of IVYs.

Again E is also very tempting. This is infact very close. But for this to be true "apply to one OR MORE of them."

Both A and E are not correct not because they are strong.