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

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

GMAT Prep : Percentages (HARD)

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 105
Joined: Fri Nov 05, 2010 8:29 pm
Thanked: 4 times
by nandy1984 » Tue Mar 27, 2012 9:25 pm
What fraction of this year's graduating students at a certain college are males?

1) Of this year's graduating students, 33% of the males and the 20% of the females transferred from another college.

2) Of this year's graduating students, 25% transferred from another college.

Please help in solving this..... I am confused where to start.....
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 3835
Joined: Fri Apr 02, 2010 10:00 pmFollowed by: 523 members
Location: Milpitas, CA
Thanked: 1854 times
GMAT Score:770

by Anurag@Gurome » Tue Mar 27, 2012 10:02 pm
nandy1984 wrote:What fraction of this year's graduating students at a certain college are males?

1) Of this year's graduating students, 33% of the males and the 20% of the females transferred from another college.

2) Of this year's graduating students, 25% transferred from another college.

Please help in solving this..... I am confused where to start.....
Let m is the number of male students graduating and f is the number of female students graduating.

(1) Of this year's graduating students, 33% of the males and the 20% of the females transferred from another college.
0.33 m and 0.20f are transferred from another college but this is not enough to find the values of m and f; NOT sufficient.

(2) Of this year's graduating students, 25% transferred from another college implies 25% of (m + f) = 0.25(m + f) are transferred from another college.
Again this is not enough to find the values of m and f
; NOT sufficient.

Combining (1) and (2), 0.33 m + 0.20f = 0.25(m + f)
0.33 m + 0.20f = 0.25m + 0.25f, which can be solved further to find the value of m/f; SUFFICIENT.

The correct answer is C.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 105
Joined: Fri Nov 05, 2010 8:29 pm
Thanked: 4 times

by nandy1984 » Wed Mar 28, 2012 4:37 am
Anurag@Gurome wrote:
nandy1984 wrote:What fraction of this year's graduating students at a certain college are males?

1) Of this year's graduating students, 33% of the males and the 20% of the females transferred from another college.

2) Of this year's graduating students, 25% transferred from another college.

Please help in solving this..... I am confused where to start.....
Let m is the number of male students graduating and f is the number of female students graduating.

(1) Of this year's graduating students, 33% of the males and the 20% of the females transferred from another college.
0.33 m and 0.20f are transferred from another college but this is not enough to find the values of m and f; NOT sufficient.

(2) Of this year's graduating students, 25% transferred from another college implies 25% of (m + f) = 0.25(m + f) are transferred from another college.
Again this is not enough to find the values of m and f
; NOT sufficient.

Combining (1) and (2), 0.33 m + 0.20f = 0.25(m + f)
0.33 m + 0.20f = 0.25m + 0.25f, which can be solved further to find the value of m/f; SUFFICIENT.

The correct answer is C.

Thank you for the explanation... we need to find here the ratio m/(m+f) right... I know if we know the m/f we can find this... i am trying to understand the problem... In the question he says "CERTAIN COLLEGE" and in the options he says " ANOTHER COLLEGE" ... this bothered me while i started reading this question....
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
GMAT Instructor
Posts: 15539
Joined: Tue May 25, 2010 12:04 pmFollowed by: 1906 members
Location: New York, NY
Thanked: 13060 times
GMAT Score:790

by GMATGuruNY » Wed Mar 28, 2012 4:57 am
I posted a solution here:

https://www.beatthegmat.com/question-on- ... tml#365673
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 934
Joined: Tue Nov 09, 2010 5:16 amFollowed by: 14 members
Location: AAMCHI MUMBAI LOCAL
Thanked: 63 times

by [email protected] » Sun Apr 01, 2012 4:16 am
The correct answer comes out to be C. took more than 2 mins.. but a good question very similar to an OG question...

This is a ratio question....

Thank You...
IT IS TIME TO BEAT THE GMAT

LEARNING, APPLICATION AND TIMING IS THE FACT OF GMAT AND LIFE AS WELL... KEEP PLAYING!!!

Whenever you feel that my post really helped you to learn something new, please press on the 'THANK' button.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1