Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack
GMAT Club

It is currently 23 Mar 2017, 21:13

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

Events & Promotions in June
Open Detailed Calendar

If all of the employees of Company K who worked there last January are

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

Hide Tags

Intern
Intern
avatar
Joined: 17 Jan 2010
Posts: 28
Followers: 0

Kudos [?]: 23 [0], given: 8

If all of the employees of Company K who worked there last January are [#permalink]

Show Tags

New post 22 Jan 2010, 07:50
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (01:54) correct 14% (00:47) wrong based on 64 sessions

HideShow timer Statistics

If all of the employees of Company K who worked there last January are still there, how many employees does Company K have now?

(1) Last January the ratio of the number of male employees to the number of female employees was 2 to 3.
(2) Since last January, Company K has employed 400 new male employees and no new female employees, raising the ratio of the number of male employees to the number of female employees to 3 to 4.
[Reveal] Spoiler: OA

Last edited by Bunuel on 27 Jul 2015, 14:43, edited 1 time in total.
Renamed the topic, edited the question and added the OA.
1 KUDOS received
Intern
Intern
User avatar
Joined: 21 Jan 2010
Posts: 49
Location: Canada
Followers: 0

Kudos [?]: 34 [1] , given: 0

Re: If all of the employees of Company K who worked there last January are [#permalink]

Show Tags

New post 22 Jan 2010, 09:26
1
This post received
KUDOS
1) Last January the ratio of the number of male employees to the number of female
employees was 2 to 3.
2) Since last January, Company K has employed 400 new male employees and no
new female employees, raising the ratio of the number of male employees to the
number of female employees to 3 to 4


1. M:F = 2:3 (or M/F = 2/3) --> 3M = 2F
2. (M+400):F = 3:4 OR (M+400)/F = 3/4

4(M+400) = 3F
4M+1600 = 3F

From 1: 3M = 2F --> 9M = 6F
From 2: 4M+1600 = 3F --> 8M + 3200 = 6F = 9M
Therefore, M = 3200.

From 1: 3(3200) = 2F
9600 = 2F
F = 4800

So, the number of employees NOW is:
(3200 + 400) + 4800 = 8200
_________________

________________________________________________________________________
Andrew
http://www.RenoRaters.com

1 KUDOS received
Intern
Intern
User avatar
Joined: 21 Jan 2010
Posts: 49
Location: Canada
Followers: 0

Kudos [?]: 34 [1] , given: 0

Re: If all of the employees of Company K who worked there last January are [#permalink]

Show Tags

New post 22 Jan 2010, 09:27
1
This post received
KUDOS
Oops... Can't add!

I think the answer is 8400.
_________________

________________________________________________________________________
Andrew
http://www.RenoRaters.com

Expert Post
1 KUDOS received
Math Expert
User avatar
G
Joined: 02 Sep 2009
Posts: 37560
Followers: 7392

Kudos [?]: 99301 [1] , given: 11010

Re: If all of the employees of Company K who worked there last January are [#permalink]

Show Tags

New post 22 Jan 2010, 09:28
1
This post received
KUDOS
Expert's post
rahulms wrote:
If all of the employees of Company K who worked there last January are still there, how many employees does Company K have now?

1) Last January the ratio of the number of male employees to the number of female employees was 2 to 3.
2) Since last January, Company K has employed 400 new male employees and no new female employees, raising the ratio of the number of male employees to the number of female employees to 3 to 4.


(1) \(\frac{m}{f}=\frac{2}{3}\), only the ratio is given, hence clearly insufficient to determine the numerical value of employee.

(2) \(\frac{m+400}{f}=\frac{3}{4}\). The same as in (1). Not sufficient.

(1)+(2) Two different equations, two variables, hence we can calculate \(m\) and \(f\). \(m+f+400\) would be the # of employees now.

Answer: C.
_________________

New to the Math Forum?
Please read this: All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Intern
Intern
avatar
Joined: 17 Jan 2010
Posts: 28
Followers: 0

Kudos [?]: 23 [0], given: 8

Re: If all of the employees of Company K who worked there last January are [#permalink]

Show Tags

New post 22 Jan 2010, 10:09
Two different equations, two variables

Yeah, that's the key!
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 14376
Followers: 602

Kudos [?]: 174 [0], given: 0

Premium Member
Re: If all of the employees of Company K who worked there last January are [#permalink]

Show Tags

New post 12 Oct 2016, 01:31
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

Re: If all of the employees of Company K who worked there last January are   [#permalink] 12 Oct 2016, 01:31
    Similar topics Author Replies Last post
Similar
Topics:
1 There is a company X that does not elect employees who are under 20 ye ziyuen 3 09 Mar 2017, 22:38
1 Experts publish their posts in the topic All of the employees of company Q received bonuses. If Naomi was an Bunuel 2 16 Nov 2015, 23:06
9 Experts publish their posts in the topic All the clients that Company X had at the beginning of last Naina1605 4 23 Feb 2012, 13:20
Last year the 5 employees of company x took an average of 16 vacations AnkitK 5 17 Mar 2011, 19:03
27 Experts publish their posts in the topic Last year, the five employees of company X took an average GMAT10 14 22 Jan 2010, 12:41
Display posts from previous: Sort by

If all of the employees of Company K who worked there last January are

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


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

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®.