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

 It is currently 16 Oct 2019, 10:03

### 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 factory the average monthly salary of workers is 550\$ and that of

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58381
In a factory the average monthly salary of workers is 550\$ and that of  [#permalink]

### Show Tags

20 Feb 2019, 05:06
00:00

Difficulty:

25% (medium)

Question Stats:

81% (02:20) correct 19% (02:41) wrong based on 36 sessions

### HideShow timer Statistics

In a factory the average monthly salary of workers is 550\$ and that of 16 officers is 3000\$. If the average monthly salary of workers and officers combined is 600\$, find the number of workers in the factory.

A. 687
B. 768
C. 786
D. 798
E. 876

_________________
Manager
Joined: 13 Oct 2018
Posts: 85
Location: India
GPA: 3.1
WE: Information Technology (Computer Software)
Re: In a factory the average monthly salary of workers is 550\$ and that of  [#permalink]

### Show Tags

20 Feb 2019, 05:25
1
assume worker = x

the by the given condition

x*550+ 16*3000 = 600* ( 16+x)

after solving this we get x = 768

Posted from my mobile device
_________________
Ankit
GMAT is tough so I am ...
Giving Kudos is the best way to encourage and appreciate people
GMAT Club Legend
Joined: 18 Aug 2017
Posts: 5008
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: In a factory the average monthly salary of workers is 550\$ and that of  [#permalink]

### Show Tags

20 Feb 2019, 09:43
Bunuel wrote:
In a factory the average monthly salary of workers is 550\$ and that of 16 officers is 3000\$. If the average monthly salary of workers and officers combined is 600\$, find the number of workers in the factory.

A. 687
B. 768
C. 786
D. 798
E. 876

550x+16*3000 = 600 * (16+x)
x = 768
IMO B
Target Test Prep Representative
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8069
Location: United States (CA)
Re: In a factory the average monthly salary of workers is 550\$ and that of  [#permalink]

### Show Tags

22 Feb 2019, 16:42
Bunuel wrote:
In a factory the average monthly salary of workers is 550\$ and that of 16 officers is 3000\$. If the average monthly salary of workers and officers combined is 600\$, find the number of workers in the factory.

A. 687
B. 768
C. 786
D. 798
E. 876

We can let w = the number of workers and create the equation:

(550w + 16 x 3000)/(w + 16) = 600

550w + 48,000 = 600w + 9,600

38,400 = 50w

w = 768

_________________

# Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

Re: In a factory the average monthly salary of workers is 550\$ and that of   [#permalink] 22 Feb 2019, 16:42
Display posts from previous: Sort by