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

 It is currently 06 Jul 2015, 23:06

### 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

# Of the z students at a certain college, x are studying

Author Message
TAGS:
Manager
Joined: 14 Dec 2005
Posts: 76
Followers: 1

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

Of the z students at a certain college, x are studying [#permalink]  26 Feb 2006, 09:31
Of the z students at a certain college, x are studying French and y are
studying German. If w are studying both French and German, which of the
following expresses the number of students at the college not studying
either French or German ?
(A) z + w â€“ x â€“ y
(B) z â€“ w â€“ x â€“ y
(C) z â€“ w â€“ x + y
(D) w + x + y â€“ z
(E) w â€“ x â€“ y â€“ z
VP
Joined: 29 Dec 2005
Posts: 1348
Followers: 7

Kudos [?]: 37 [0], given: 0

Re: Problem Solving - Help [#permalink]  26 Feb 2006, 11:00
(B) z â€“ w â€“ x â€“ y
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5068
Location: Singapore
Followers: 23

Kudos [?]: 194 [0], given: 0

# of students studying neither french nor german = z - (x-w + w + y-w) = z - (x+y-w) = z-x-y+w

Ans A
Manager
Joined: 24 Dec 2005
Posts: 95
Followers: 1

Kudos [?]: 4 [0], given: 0

Got A.

Professor, could you explain your logic? Not sure if we are missing something. Besides I can never trust myself with questions involving sets
VP
Joined: 20 Sep 2005
Posts: 1021
Followers: 3

Kudos [?]: 27 [0], given: 0

A.

Number of students studying german and not french = y-w....(a)
Number of students not studying french = z-x...........(b)

Number of student no studying both = b - a = z-x-(y-w) = z+w-x-y
VP
Joined: 29 Dec 2005
Posts: 1348
Followers: 7

Kudos [?]: 37 [0], given: 0

Gordon wrote:
Got A.

Professor, could you explain your logic? Not sure if we are missing something. Besides I can never trust myself with questions involving sets

my logic is wrong one and you all have correct one. i also go with A.
Similar topics Replies Last post
Similar
Topics:
At least 100 students at a certain high school study 1 03 Aug 2008, 17:50
Atleast 100 students at a certain high school study 3 26 Jul 2008, 01:10
At least 100 students at a certain high school study 2 01 Jun 2008, 11:59
At least 100 students at a certain high school study 5 02 May 2008, 22:53
1 At least 100 students at a certain high school study 8 13 Nov 2006, 19:28
Display posts from previous: Sort by