It is currently 28 Jun 2017, 16:23

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# What fraction of this year's graduating students at a

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Intern
Joined: 20 Feb 2006
Posts: 5
What fraction of this year's graduating students at a [#permalink]

### Show Tags

07 Apr 2006, 14:17
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What fraction of this year's graduating students at a certain college are males?

1) 33 percent of the males and 20 percent of the females transferred from another college

2) 25 percent transferred from another college

OA is C, but i'm not sure how you can solve given this information. I would think you would need the proportion of males to females (or the actual number)

Thanks in advance for the help

Intern
Joined: 20 Feb 2006
Posts: 5

### Show Tags

07 Apr 2006, 15:49
oa = official answer
Manager
Joined: 27 Mar 2006
Posts: 136

### Show Tags

07 Apr 2006, 16:31

They talk about transferring students.

Not sure how C is the answer
Manager
Joined: 20 Nov 2004
Posts: 108

### Show Tags

10 Apr 2006, 10:56
shevy wrote:
Not sure how C is the answer

If A is the number of men and B the number of women,
the combination of (1) and (2) leads to

A/3 + B/5 = (A+B) / 4

20A + 12B = 15 (A+B)
5A = 3B
A/B = 3/5

So 3/8 of the students are male.

If e. g. A = 30, then B = 50. From these 80 students, 1/3 of the
males (-> 10) and 1/5 of the females (-> 10) transferred from
another college. And these 10 + 10 = 20 represent 25% of the
students (-> 80).
VP
Joined: 21 Mar 2006
Posts: 1127
Location: Bangalore

### Show Tags

11 Apr 2006, 07:29
1
KUDOS
1) (33/100)M - males who joined from other colleges
(22/100)F - females who joined from other colleges

2) (25/100)(M+F) - males and females who joined from other colleges

combining 1 and 2

(33/100)M + (22/100)F = (25/100)(M+F)

simplifying, M/F = 3/8.

Thus fraction of males M/(M+F) = 3/11

C is the answer
Senior Manager
Joined: 08 Jun 2004
Posts: 495
Location: Europe
Re: data sufficiency - graduating students at a certain coll [#permalink]

### Show Tags

11 Apr 2006, 10:52
What fraction of this year's graduating students at a certain college are males?

1) 33 percent of the males and 20 percent of the females transferred from another college

2) 25 percent transferred from another college

OA is C, but i'm not sure how you can solve given this information. I would think you would need the proportion of males to females (or the actual number)

Thanks in advance for the help

What is the source of this question?
Director
Joined: 10 Oct 2005
Posts: 718

### Show Tags

11 Apr 2006, 11:13
C it is
Let me try to explain))
33 percent of the males and 20 percent of the females transferred from another college ---->0.33M and 0.20F where M->total male and F->total female

25 percent transferred from another college--->
so 0.33M+0.20F=1/4(M+F)
after simplifying we get 0.32M=0.2F or M/F=8/5
_________________

IE IMBA 2010

Director
Joined: 10 Oct 2005
Posts: 718

### Show Tags

11 Apr 2006, 11:16
kripalkavi wrote:
1) (33/100)M - males who joined from other colleges
(22/100)F - females who joined from other colleges

2) (25/100)(M+F) - males and females who joined from other colleges

combining 1 and 2

(33/100)M + (22/100)F = (25/100)(M+F)

simplifying, M/F = 3/8.

Thus fraction of males M/(M+F) = 3/11

C is the answer

(22/100)F - females who joined from other colleges Here is a typo)) it should be 20/100! And I used same approach as you))
_________________

IE IMBA 2010

Senior Manager
Joined: 24 Jan 2006
Posts: 252

### Show Tags

11 Apr 2006, 16:59
I am seeing this question atleast 3rd time.

Catch is here Q contains percent and not values. So, by default we have fraction and past of whole (from 100 percent!)
11 Apr 2006, 16:59
Display posts from previous: Sort by

# What fraction of this year's graduating students at a

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.