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

 It is currently 20 Aug 2018, 21:08

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

In a certain department of ABC business school, there are either...

Author Message
TAGS:

Hide Tags

Manager
Joined: 24 May 2016
Posts: 163
In a certain department of ABC business school, there are either...  [#permalink]

Show Tags

21 Aug 2016, 09:56
2
00:00

Difficulty:

45% (medium)

Question Stats:

67% (01:51) correct 33% (01:32) wrong based on 81 sessions

HideShow timer Statistics

In a certain department of ABC business school, there are either accounting or finance professors. If 2/3 of the professors are accounting professors, what is the ratio of the total number of professors that do outside consulting to the total number of professors that don't do outside consulting?

1) 1/3 of the finance professors do outside consulting.
2) The ratio of the number of accounting professors that do outside consulting to the number of finance professors that do outside consulting is 3:4.

Board of Directors
Status: Stepping into my 10 years long dream
Joined: 18 Jul 2015
Posts: 3690
Re: In a certain department of ABC business school, there are either...  [#permalink]

Show Tags

27 Aug 2016, 11:17
1
EBITDA wrote:
In a certain department of ABC business school, there are either accounting or finance professors. If 2/3 of the professors are accounting professors, what is the ratio of the total number of professors that do outside consulting to the total number of professors that don't do outside consulting?

1) 1/3 of the finance professors do outside consulting.
2) The ratio of the number of accounting professors that do outside consulting to the number of finance professors that do outside consulting is 3:4.

Let total professors be 3x.

So, Accounting professors = 2x and Finance professors = x.

Now, Statement 1 says x/3 is the Finance professors who do Outside consulting. But we don;t know about Accounting professors who do outside consulting. Hence, Insufficient.

Now, Statement 2 : Accounting outside/Finance outside= 3/4 or say Accounting Outside = 3y and Finance Outside = 4y

Required Ratio, Total Outside/Total Not Outside= 7y/((2x-3y )+(x-4y))

= 7y/(3x-7y)

But we don't know the relation between x and y, we cannot solve this equation. hence, insufficient.

Combining, from one we know that x/3 = 4y or x=12y

Substitute this value in the equation of 2, we can get rid of variables and get the ratio as 7/29.

hence, C.
_________________

My GMAT Story: From V21 to V40
My MBA Journey: My 10 years long MBA Dream
My Secret Hacks: Best way to use GMATClub | Importance of an Error Log!
Verbal Resources: All SC Resources at one place | All CR Resources at one place

GMAT Club Inbuilt Error Log Functionality - View More.
New Visa Forum - Ask all your Visa Related Questions - here.

Find a bug in the new email templates and get rewarded with 2 weeks of GMATClub Tests for free

Non-Human User
Joined: 09 Sep 2013
Posts: 7774
Re: In a certain department of ABC business school, there are either...  [#permalink]

Show Tags

12 Sep 2017, 22:17
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.
_________________
Re: In a certain department of ABC business school, there are either... &nbs [#permalink] 12 Sep 2017, 22:17
Display posts from previous: Sort by

Events & Promotions

 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®.