It is currently 23 Jun 2017, 00:17

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Each employee on a certain task force is either a manager or

Author Message
Manager
Joined: 03 Jul 2005
Posts: 192
Location: City
Each employee on a certain task force is either a manager or [#permalink]

Show Tags

12 Nov 2006, 23:37
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Each employee on a certain task force is either a manager or a director. What percent of the employees on the task force are directors?

A) The average (arithmetic mean) salary of the managers on the task force is $5,000 less than the average salary of all employees on the task force B) The average (arithmetic mean) salary of the directors on the task force is$15,000 greater than the average salary of all employees on the task force.

Could you work how to finish the question to prove what the answer is.
VP
Joined: 25 Jun 2006
Posts: 1166

Show Tags

13 Nov 2006, 01:45
guessing E.

i can't working out the answer.
Director
Joined: 06 Feb 2006
Posts: 897

Show Tags

13 Nov 2006, 01:57
Hm...

Taking both statements together....

Sum of wages =S (all empoyees) Sd(directors) Sm(managers)
# of managers = m
# of directors = d (need to find this)
# of all employees = a (need to find this)
the average salary = y

Average salary of all employees: S/a=y

from 1) Sm/m=y-5
from 2) Sd/d=y+15

Did no detailed calculations, however feel that the answer is E....
VP
Joined: 25 Jun 2006
Posts: 1166

Show Tags

13 Nov 2006, 02:01
all we need is to find the ratio m/d, but it seems not possible.
Manager
Joined: 03 Jul 2005
Posts: 192
Location: City

Show Tags

13 Nov 2006, 04:50
Apparently the OA is C, but I cannot see how!!
13 Nov 2006, 04:50
Display posts from previous: Sort by

Each employee on a certain task force is either a manager or

 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®.