It is currently 24 May 2020, 17:29
My Tests

Close

GMAT Club Daily Prep

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.

In college M the average

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Retired Moderator
User avatar
Joined: 07 Jun 2014
Posts: 4806
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 162

Kudos [?]: 2654 [0], given: 394

In college M the average [#permalink] New post 09 May 2015, 11:22
Expert's post
00:00

Question Stats:

88% (00:57) correct 11% (01:39) wrong based on 35 sessions
In college M the average (arithmetic mean) number of students per course is 30 and the ratio of the number of students to the number of faculty is 20 to 1.


Quantity A
Quantity B
The total number of students in College M
600


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

Kudos for the right answer and explanation
[Reveal] Spoiler: OA

_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

1 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 3244
Followers: 124

Kudos [?]: 3619 [1] , given: 61

CAT Tests
Re: GRE Math Challenge #103 [#permalink] New post 12 May 2015, 08:40
1
This post received
KUDOS
Expert's post
sandy wrote:
In college M the average (arithmetic mean) number of students per course is 30 and the ratio of the number of students to the number of faculty is 20 to 1.

Quantity A: The total number of students in College M
Quantity B: 600


Each piece of information is insufficient to determine the total number of students.

The average (arithmetic mean) number of students per course is 30
To determine the number of students, we need to know the number of courses.

The ratio of the number of students to the number of faculty is 20 to 1
To determine the number of students, we need to know the number of faculty.

Consider these two possible cases:

Case #1: There are 3 faculty members, who teach a total of 2 courses. This means there are 60 students in College M, in which case Quantity B is greater.
Case #2: There are 300 faculty members, who teach a total of 200 courses. This means there are 6000 students in College M, in which case Quantity A is greater.

Answer:
[Reveal] Spoiler:
D


Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com
Sign up for my free GRE Question of the Day emails
Image

Intern
Intern
Joined: 06 Oct 2016
Posts: 7
Followers: 0

Kudos [?]: 1 [0], given: 1

Re: GRE Math Challenge #103-In college M the average [#permalink] New post 13 Dec 2016, 12:26
i cant understand this solution, can anybody explain this in easy process please?
Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 11096
Followers: 237

Kudos [?]: 2769 [0], given: 10521

CAT Tests
Re: In college M the average [#permalink] New post 13 Dec 2019, 10:27
Expert's post
Bump for further discussion
_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests.

Re: In college M the average   [#permalink] 13 Dec 2019, 10:27
Display posts from previous: Sort by

In college M the average

  Question banks Downloads My Bookmarks Reviews Important topics  


GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.