Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 04 May 2015, 01:12

### 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 of Company Z is an employee of either division

Author Message
TAGS:
Intern
Joined: 14 Jan 2006
Posts: 23
Followers: 0

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

Each employee of Company Z is an employee of either division [#permalink]  27 May 2006, 12:37
00:00

Difficulty:

(N/A)

Question Stats:

100% (00:00) correct 0% (00:00) wrong based on 1 sessions
Each employee of Company Z is an employee of either division X or division Y, but not both. If each division has some part-time employees, is the ratio of the number of full-time employee to the number of part-time employees greater for Division X than for Company Z ?

1) the ratio of the number of full-time employees to the number of part-time employees is less for division Y than for company Z.

2) more than half of the full-time employees of Company Z are employees of Division X, and more than half of the part-time employees of Company Z are employees of division Y.

Manager
Joined: 25 Apr 2006
Posts: 50
Followers: 0

Kudos [?]: 2 [0], given: 0

Ans: B

(1) ratio of FT to PT emp of Comp. Z and Div Y doesnt tell us anything about the ratio relation between comp Z and Div X. Not Sufficient

(2) Increase in FT emp of Div X and decrease in PT emp of Div X (since it is more in Div Y) increases the the ratio for Div X while the ration remains the same for Comp. Z. Suff.
Intern
Joined: 14 Jan 2006
Posts: 23
Followers: 0

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

nope. its not correct according to gmat prep.

Anyone else wants to try ?
VP
Joined: 21 Sep 2003
Posts: 1066
Location: USA
Followers: 3

Kudos [?]: 39 [0], given: 0

Initially got A , but it should be D.

Let:
x = number of FT employees in div X
y = number of FT employees in div X

p = number of FT employees in div Y
q = number of FT employees in div Y

Is x/y > (x+p)/(y+q)
=> Is x/y > p/q?

1. Given, p/q < (x+p)/(y+q)
=> p/q < x/y Hence SUFF.

2. 1/2(x+p) < x and 1/2(y+q) < q
or

x/(x+p) > 1/2 & q/(y+q) > 1/2

x/(x+p) + q/(y+q) > 1
xy+xq+xq+pq > xy+xq+py+pq
=> x/y > p/q

Hence D.
_________________

"To dream anything that you want to dream, that is the beauty of the human mind. To do anything that you want to do, that is the strength of the human will. To trust yourself, to test your limits, that is the courage to succeed."

- Bernard Edmonds

Intern
Joined: 14 Jan 2006
Posts: 23
Followers: 0

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

OA is 'D'

good work giddi. i couldn't solve the problem. thanks for the explanation.
Similar topics Replies Last post
Similar
Topics:
Each employee of Company Z is an employee of either Division 7 31 Aug 2008, 10:58
1 Each employee of Company Z is an employee of either division 7 23 Apr 2008, 19:29
Each employee of company Z is an employee of either Division 2 26 Dec 2007, 07:34
Each employee of Company Z is an employee of either Division 7 31 Aug 2007, 09:28
Each employee of Company Z is an employee of either Division 5 18 Oct 2006, 13:02
Display posts from previous: Sort by