It is currently 20 Oct 2017, 06:03

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

A firm is comprised of partners and associates in a ratio of

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

Hide Tags

Intern
Intern
avatar
Joined: 19 Jan 2010
Posts: 13

Kudos [?]: 24 [0], given: 16

A firm is comprised of partners and associates in a ratio of [#permalink]

Show Tags

New post 02 Jun 2012, 18:00
2
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

83% (05:31) correct 17% (02:41) wrong based on 145 sessions

HideShow timer Statistics

Any help please. the book did not provide any answer. Thanks

A firm is comprised of partners and associates in a ratio of 2:65. Were 75 more associates hired, the ratio of partners to associates would be 4 to 155. How many partners are currently in the firm?

A. 5
B. 10
C. 12
D. 20
E. 25
[Reveal] Spoiler: OA

Kudos [?]: 24 [0], given: 16

Expert Post
1 KUDOS received
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 41890

Kudos [?]: 128966 [1], given: 12185

Re: A firm is comprised of partners and associates in a ratio of [#permalink]

Show Tags

New post 03 Jun 2012, 02:49
1
This post received
KUDOS
Expert's post
2
This post was
BOOKMARKED
phoenix9801 wrote:
Any help please. the book did not provide any answer. Thanks

A firm is comprised of partners and associates in a ratio of 2:65. Were 75 more associates hired, the ratio of partners to associates would be 4 to 155. How many partners are currently in the firm?

A. 5
B. 10
C. 12
D. 20
E. 25


Given: \(\frac{partners}{associates}=\frac{2x}{65x}\), for some positive multiple \(x\).

Also: \(\frac{2x}{65x+75}=\frac{4}{155}\) --> \(x=6\) --> \(partners=2x=12\).

Answer: C.
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | 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

Kudos [?]: 128966 [1], given: 12185

1 KUDOS received
Intern
Intern
User avatar
Joined: 25 Jul 2014
Posts: 18

Kudos [?]: 37 [1], given: 52

Concentration: Finance, General Management
GPA: 3.54
WE: Asset Management (Venture Capital)
Re: A firm is comprised of partners and associates in a ratio of [#permalink]

Show Tags

New post 19 Nov 2014, 10:51
1
This post received
KUDOS
phoenix9801 wrote:
Any help please. the book did not provide any answer. Thanks

A firm is comprised of partners and associates in a ratio of 2:65. Were 75 more associates hired, the ratio of partners to associates would be 4 to 155. How many partners are currently in the firm?

A. 5
B. 10
C. 12
D. 20
E. 25


Don't do big numbers calculation or you will fall into time trap.
Notice that the original ratio is 2:65 and the later ratio after the hire is 4:155. So the number of Partners should be divisible to both 2 and 4. Eliminate A,B, and E.
Now, pick either C or D to test (if it correct, choose it, if not, choose the other).
Let pick C: if the original partner is 12, then the original ratio will be 12:(6x65) *again, dont do big number calculation*
After the hiring, the ratio should be 12:(6x65 +75)
Now take 3 out as the multiple (3x4):(3x(2.65+25))
Cancel out the 3 we have 4:155 correct
So choice C.
Should take you about 1:20-maximum 2 min

Kudos [?]: 37 [1], given: 52

Director
Director
User avatar
G
Joined: 23 Jan 2013
Posts: 601

Kudos [?]: 22 [0], given: 41

Schools: Cambridge'16
Re: A firm is comprised of partners and associates in a ratio of [#permalink]

Show Tags

New post 14 Dec 2014, 21:33
2x/65x+75=4y/155y

310xy=260xy+300y

50xy=300y

50x=300

x=6

so, 2*6=12

C

Kudos [?]: 22 [0], given: 41

Re: A firm is comprised of partners and associates in a ratio of   [#permalink] 14 Dec 2014, 21:33
Display posts from previous: Sort by

A firm is comprised of partners and associates in a ratio of

  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 | 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®.