| View previous topic :: View next topic |
| Author |
Message |
ektamatta
Really wants to Beat The GMAT!
Joined: 13 May 2008
Posts: 151
Thanks given: 2
Thanked 1 times in 1 posts
Location: dallas,tx usa
Target GMAT Score: 650
|
 Posted: Tue May 27, 2008 8:00 pm Post subject: A certain university |
 |
|
A certain university will select 1 of 7 candidates eligible to fill a position in the mathematics department and 2 of 10 candidates eligible to fill 2 identical positions in the computer science department. If none of the candidates is eligible for a position in both departments, how many different sets of 3 candidates are there to fill the 3 positions?
A. 42
B. 70
C. 140
D. 165
E. 315
i got the answer E..what u guys think? |
|
| Back to top |
|
 |
|
|
VP_Jim
GMAT Instructor
Joined: 01 May 2008
Posts: 719
Thanks given: 0
Thanked 96 times in 96 posts
Location: Portland, Oregon
|
| Posted: Tue May 27, 2008 8:45 pm Post subject: |
|
|
I agree, it's E. This one is pretty straightforward:
7 candidates for math department
45 combinations of candidates for computer science department [(10*9)/2!].
7*45 = 315
_________________
Jim S. | GMAT Instructor | Veritas Prep | Elite GMAT Prep and Admissions Consulting
Learn more about me |
|
| Back to top |
|
|
getneonow
Rising GMAT Star
Joined: 14 Mar 2008
Posts: 37
Thanks given: 9
Thanked 4 times in 4 posts
Location: India
Target GMAT Score: 750s
|
| Posted: Wed May 28, 2008 1:04 am Post subject: |
|
|
7 *10C2 (coz the positions are identical)
Neo
_________________
My MBA:The Pursuit of HappYness |
|
| Back to top |
|
|
|
