GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 20 Feb 2019, 09:43

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.

Close

Request Expert Reply

Confirm Cancel
Events & Promotions in February
PrevNext
SuMoTuWeThFrSa
272829303112
3456789
10111213141516
17181920212223
242526272812
Open Detailed Calendar
  • Free GMAT Prep Hour

     February 20, 2019

     February 20, 2019

     08:00 PM EST

     09:00 PM EST

    Strategies and techniques for approaching featured GMAT topics. Wednesday, February 20th at 8 PM EST
  • Online GMAT boot camp for FREE

     February 21, 2019

     February 21, 2019

     10:00 PM PST

     11:00 PM PST

    Kick off your 2019 GMAT prep with a free 7-day boot camp that includes free online lessons, webinars, and a full GMAT course access. Limited for the first 99 registrants! Feb. 21st until the 27th.

The number of female students in college XYZ in the

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

 
Director
Director
User avatar
S
Joined: 17 Dec 2012
Posts: 624
Location: India
The number of female students in college XYZ in the  [#permalink]

Show Tags

New post 25 Jul 2013, 00:49
1
3
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

66% (02:16) correct 34% (02:16) wrong based on 73 sessions

HideShow timer Statistics

The number of female students in college XYZ in the previous year was 500. If in the current year the number of male students in XYZ doubled over that of the previous year but the proportion of male students halved, then the number of female students in XYZ in the current year is,

A.125
B.250
C.500
D.1000
E.2000

_________________

Srinivasan Vaidyaraman
Sravna Holistic Solutions
http://www.sravnatestprep.com

Holistic and Systematic Approach

SVP
SVP
User avatar
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1820
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Re: The number of female students in college XYZ in the  [#permalink]

Show Tags

New post 26 Jul 2013, 01:27
Answer = E = 2000
Previous Year
---------------------
Lets say male students = x
Female students = 500
Total = x + 500

Current Year
--------------------
Male students = 2x
Female Students = 500 + y (Say y is the no. of additions of female students this year)
Total = 2x + y + 500

By condition given, 1/2 500/(x+500) = 2x/(2x + y + 500)

Solving the equation, we get female students = 2000.
This can also be done by putting values in male students. Kindly provide any other easy method to solve this
_________________

Kindly press "+1 Kudos" to appreciate :)

Manager
Manager
avatar
Joined: 06 Jun 2012
Posts: 122
GMAT ToolKit User
Re: The number of female students in college XYZ in the  [#permalink]

Show Tags

New post 26 Jul 2013, 05:08
Here's how i did it.

Last Year : M/F = X
F = 500 => M = 500X

This year Mnew/Fnew = X/2
Mnew = 2M => 2*500X
Hence Fnew = 2*Mnew/X =2000
_________________

Please give Kudos if you like the post

Manager
Manager
User avatar
Joined: 24 Nov 2012
Posts: 157
Concentration: Sustainability, Entrepreneurship
GMAT 1: 770 Q50 V44
WE: Business Development (Internet and New Media)
Re: The number of female students in college XYZ in the  [#permalink]

Show Tags

New post 27 Jul 2013, 08:56
SravnaTestPrep wrote:
the proportion of male students halved


Wouldnt questions on gmat be better worded?

I initially considered the proportion of male students to whole to have halved.. If the word proportion were replaced m/f ratio would have made it much easier... :)
_________________

You've been walking the ocean's edge, holding up your robes to keep them dry. You must dive naked under, and deeper under, a thousand times deeper! - Rumi

http://www.manhattangmat.com/blog/index.php/author/cbermanmanhattanprep-com/ - This is worth its weight in gold

Economist GMAT Test - 730, Q50, V41 Aug 9th, 2013
Manhattan GMAT Test - 670, Q45, V36 Aug 11th, 2013
Manhattan GMAT Test - 680, Q47, V36 Aug 17th, 2013
GmatPrep CAT 1 - 770, Q50, V44 Aug 24th, 2013
Manhattan GMAT Test - 690, Q45, V39 Aug 30th, 2013
Manhattan GMAT Test - 710, Q48, V39 Sep 13th, 2013
GmatPrep CAT 2 - 740, Q49, V41 Oct 6th, 2013

GMAT - 770, Q50, V44, Oct 7th, 2013
My Debrief - http://gmatclub.com/forum/from-the-ashes-thou-shall-rise-770-q-50-v-44-awa-5-ir-162299.html#p1284542

Director
Director
User avatar
S
Joined: 17 Dec 2012
Posts: 624
Location: India
Re: The number of female students in college XYZ in the  [#permalink]

Show Tags

New post 28 Jul 2013, 00:19
Transcendentalist wrote:
SravnaTestPrep wrote:
the proportion of male students halved


Wouldnt questions on gmat be better worded?

I initially considered the proportion of male students to whole to have halved.. If the word proportion were replaced m/f ratio would have made it much easier... :)


I do agree that the way it is worded would make one think harder. Actually I think it is a good thing. Don't you agree?
_________________

Srinivasan Vaidyaraman
Sravna Holistic Solutions
http://www.sravnatestprep.com

Holistic and Systematic Approach

Director
Director
User avatar
S
Joined: 17 Dec 2012
Posts: 624
Location: India
Re: The number of female students in college XYZ in the  [#permalink]

Show Tags

New post 29 Jul 2013, 18:36
2
Solution:

1. Let x be the number of male students last year . Number of female students last year=500. m/f=x/500
2. The number of male students this year is 2x.
3. To maintain the same ratio of m/f, the number of female students also would have doubled. Thus with only this fact taken into account, we have m/f=2*x/2*500 = 2x/1000.
4. The second fact is that the proportion of male to female halved i.e., m/f = 1/2 (2x/1000)= 2x/2000
5. So x has become 2x and 500 has become 2000.

Therefore the number of female students in the current year is 2000.
_________________

Srinivasan Vaidyaraman
Sravna Holistic Solutions
http://www.sravnatestprep.com

Holistic and Systematic Approach

Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 9862
Premium Member
Re: The number of female students in college XYZ in the  [#permalink]

Show Tags

New post 28 Jan 2019, 03:23
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

GMAT Club Bot
Re: The number of female students in college XYZ in the   [#permalink] 28 Jan 2019, 03:23
Display posts from previous: Sort by

The number of female students in college XYZ in the

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.