It is currently 19 Nov 2017, 09:28

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

DS - Pizza

Author Message
Senior Manager
Joined: 14 Aug 2006
Posts: 361

Kudos [?]: 51 [0], given: 0

Show Tags

13 Dec 2006, 11:06
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.

Attachments

pr_4_24.GIF [ 4.4 KiB | Viewed 820 times ]

Kudos [?]: 51 [0], given: 0

Senior Manager
Joined: 08 Jun 2006
Posts: 335

Kudos [?]: 63 [0], given: 0

Location: Washington DC

Show Tags

13 Dec 2006, 11:41
Getting B
x = 7

From 1)
X C 2 = X C X-2
Canâ€™t find the value of X

From 2)
X + 1 C 4 = 2 * X C 4
Getting X = 7

Kudos [?]: 63 [0], given: 0

Senior Manager
Joined: 14 Aug 2006
Posts: 361

Kudos [?]: 51 [0], given: 0

Show Tags

13 Dec 2006, 11:54
great job guys..
OA is B

I read the question as the number of different pizzas that could be made with 4 toppings as:

4 - single toppings
4c 2 - two toppings
4 c 3 - three toppings
4c 4 - 4 toppings

Kudos [?]: 51 [0], given: 0

Manager
Joined: 28 Aug 2006
Posts: 243

Kudos [?]: 3 [0], given: 0

Location: Albuquerque, NM

Show Tags

07 Jan 2007, 20:43
nice question, what is the source?

Kudos [?]: 3 [0], given: 0

Intern
Joined: 21 Nov 2006
Posts: 43

Kudos [?]: 7 [0], given: 0

Show Tags

09 Jan 2007, 09:36
What is the 7C4 8C4? I mean what is the C? Is it combination? I guess not as the number doesnt work. I havent been on here enough to pick up the shorthand.

Thanks
Eric

Kudos [?]: 7 [0], given: 0

Intern
Joined: 02 Jan 2007
Posts: 41

Kudos [?]: 5 [0], given: 0

Show Tags

11 Jan 2007, 19:41
Just trying to understand this problem took me a long time (>3 minutes). Maybe it is wording.

Once I figured out it was a combination problem the rest was easy. But if I see a problem like this on the test I would not be able to recognize it fast enough and probably would have guessed.

Kudos [?]: 5 [0], given: 0

Senior Manager
Joined: 24 Nov 2006
Posts: 349

Kudos [?]: 28 [0], given: 0

Show Tags

12 Jan 2007, 20:09
I also had a bit of a problem with the wording.

(1) is actually an identity that holds for any X >= 2; that is, XC2 = XC(X-2) for each X >=2.

Kudos [?]: 28 [0], given: 0

12 Jan 2007, 20:09
Display posts from previous: Sort by