BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Draw a conclusion

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 74
Joined: Mon Jun 30, 2008 3:07 am
Thanked: 5 times

Draw a conclusion

by paridhi » Mon Jul 26, 2010 8:36 am
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.

OA is C


Can someone please explain...
Top
Source: — Critical Reasoning |
User avatar
Master | Next Rank: 500 Posts
Posts: 214
Joined: Mon Mar 29, 2010 1:46 pm
Location: Houston, TX
Thanked: 37 times
GMAT Score:700

by sk818020 » Mon Jul 26, 2010 9:15 am
Could you please list the source of this question?
Top
User avatar
Legendary Member
Posts: 748
Joined: Sun Jan 31, 2010 7:54 am
Thanked: 46 times
Followed by:3 members

by outreach » Mon Jul 26, 2010 9:33 am
this is a mgmat question

https://www.manhattangmat.com/forums/eve ... t3461.html
-------------------------------------
--------------------------------------
General blog
https://amarnaik.wordpress.com
MBA blog
https://amarrnaik.blocked/
Top
Newbie | Next Rank: 10 Posts
Posts: 7
Joined: Sun Jul 18, 2010 10:47 am

by kenfrapin » Mon Jul 26, 2010 1:07 pm
So here is my reasoning for choosing C

Look at the premises -
1. Everyone who has graduated from TopNotch High School has an intelligence quotient (IQ) of over 120
2. 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.

I actually chose A but there is an assumption here that students are accepted even without applying - and is hence not valid as Premise 2 clearly states 'who apply'
B is correct but does not use BOTH the premises given and is hence not the BEST answer. It only concludes using Premise 1
D states assumes the possibility of there being one student who applied to just one college and got in - We dont have info to confirm this. Also, if one batch of students passed with the highest IQ of 130, and if all of them applied to colleges where they wanted an IQ of 150 then none would have got through. Lot of assumptions so not the right answer
E is true but only uses Premise 2

Now C is the best choice and the reasons are
1. It uses both Premise 1 - as he has 130, there is a good chance to have studied in TopNotch and also Premise 2 - as he has 130, he has a chance of getting into Ivy League school
2. Use of the keyword applied adds strength to C being right.
3. There is no use of extremes as Must, should etc and I just read this evening from CR guide about the use of extremes. Conclusions in GMAT avoid use of extremes at all costs.

I have to admit - this is an impossibly difficult argument as it takes absolutely too long to narrow down a single answer. I had to analyse why it is C and not the other 4 which alone took 10mins!!!

KP
2.
Top
Post new topic Post Reply
• Page 1 of 1