Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Most serious students are happy students, and most serious [#permalink]

Show Tags

06 Aug 2009, 16:50

3

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

35% (medium)

Question Stats:

76% (01:45) correct
24% (01:25) wrong based on 75 sessions

HideShow timer Statistics

Most serious students are happy students, and most serious students go to graduate school. Furthermore, all students who go to graduate school are overworked.

Which one of the following can be properly inferred from the statements above?

1) Most overworked students are happy students. 2) Some happy students are overworked 3) All overworked students are serious students 4) Some unhappy students go to graduate school 5) All serious students are overworked

Most serious students are happy students, and most serious students go to graduate school. Furthermore, all students who go to graduate school are overworked.

Which one of the following can be properly inferred from the statements above?

1) Most overworked students are happy students. 2) Some happy students are overworked 3) All overworked students are serious students 4) Some unhappy students go to graduate school 5) All serious students are overworked

answer is B

thanks for explaining

You can make Venn diagrams to understand the given data.

Attachment:

Ques3.jpg [ 31.82 KiB | Viewed 2198 times ]

Most serious students are happy students, - More than 50% of serious students are happy so the red and yellow circle overlap such that more than 50% of the red circle is covered by the yellow circle.

and most serious students go to graduate school - More than 50% of serious students are go to graduate schools so the red and green circle overlap such that more than 50% of the red circle is covered by the green circle.

This implies that the yellow and the green circle will definitely have some overlap.

Furthermore, all students who go to graduate school are overworked. - The white circle envelopes the green circle completely.

Since yellow (happy students) circle does overlap with green circle (go to graduate school) and green circle is inside the white (overworked) circle,. it means the yellow circle and white circle must overlap atleast a bit.

So some happy students are overworked.

Answer (B)

None of the other options "must be true". They may or may not be true but we cannot properly infer them.
_________________

Most serious students are happy students, and most serious [#permalink]

Show Tags

25 Dec 2015, 21:44

I will disassemble the argument

1. Most serious-------->Happy Most serious--------->go to grad school

2. All students in grad school----> over worked

Few points before going to answer. Two categories of students here. Most serious and other students.

a. We don’t know how much % does 'most serious' students occupy in the entire pool of students. b. Other students can be happy c. Other students go to school d. Other students do over work e. Most=above 50% f. Some= An unknown quantity(less than 50% ?)

1) Most overworked students are happy students.- we can,t say that 2) Some happy students are overworked- yep an unknown quantity of happy students are overworked. It can be 1% to 100%. 3) All overworked students are serious students – no only some over worked students are serious 4) Some unhappy students go to graduate school- All other students also can be happy. 5) All serious students are overworked---Unhappy students can be there in the pool who is working hard

please do mention if i am wrong in my reasoning.

Last edited by pkm9995109794 on 26 Dec 2015, 00:54, edited 1 time in total.

Most serious students are happy students, and most serious students go to graduate school. Furthermore, all students who go to graduate school are overworked.

Which one of the following can be properly inferred from the statements above?

1) Most overworked students are happy students. 2) Some happy students are overworked 3) All overworked students are serious students 4) Some unhappy students go to graduate school 5) All serious students are overworked

There is a group of serious students.. given that:- 1)Most serious students are happy students... Most would mean >50% 2) most serious students go to graduate school...

since both the groups "happy students" and "students go to graduate school" have most of the serious students within its ambit.. there ha sto be atleast a few of both the groups overlapping, that is some serious students have to be common to the two groups.."happy students" and "students go to graduate school" ... whcih in turn means that some happy students go to graduate school But we are also told that all th egraduate school students are overworked.. so some happy students go to graduate school can be written as some happy students are overworked students B
_________________

Campus visits play a crucial role in the MBA application process. It’s one thing to be passionate about one school but another to actually visit the campus, talk...

Its been long time coming. I have always been passionate about poetry. It’s my way of expressing my feelings and emotions. And i feel a person can convey...

Marty Cagan is founding partner of the Silicon Valley Product Group, a consulting firm that helps companies with their product strategy. Prior to that he held product roles at...

Written by Scottish historian Niall Ferguson , the book is subtitled “A Financial History of the World”. There is also a long documentary of the same name that the...