sequence gmat prep question. : PS Archive
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 23 Jan 2017, 20:29

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

sequence gmat prep question.

Author Message
Intern
Joined: 26 Oct 2009
Posts: 2
Followers: 0

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

Show Tags

28 Oct 2009, 20:57
00:00

Difficulty:

(N/A)

Question Stats:

75% (01:12) correct 25% (01:15) wrong based on 4 sessions

HideShow timer Statistics

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

Q. For a finite sequence of nonzero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the two consecutive terms is negative. What is the number of variations in sign for the sequence 1,-3,2,5,-4,-6.

a. one
b. Two
c. Three
d. Four
e. Five
Senior Manager
Joined: 18 Aug 2009
Posts: 303
Followers: 3

Kudos [?]: 272 [0], given: 9

Re: sequence gmat prep question. [#permalink]

Show Tags

28 Oct 2009, 21:02
C

1, -3
-3, 2
5, -4

three pairs of consecutive sequence terms where product comes to be -ive
Intern
Joined: 26 Oct 2009
Posts: 2
Followers: 0

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

Re: sequence gmat prep question. [#permalink]

Show Tags

28 Oct 2009, 21:05
thanks, i was having trouble understanding the question.
Senior Manager
Joined: 18 Aug 2009
Posts: 303
Followers: 3

Kudos [?]: 272 [0], given: 9

Re: sequence gmat prep question. [#permalink]

Show Tags

28 Oct 2009, 21:17
np.. 1-2 hrs of wordy math and I'm not able to read any meaning into these
Manager
Joined: 15 Sep 2009
Posts: 137
Followers: 1

Kudos [?]: 22 [0], given: 2

Re: sequence gmat prep question. [#permalink]

Show Tags

29 Oct 2009, 03:44
I will choose option 3.

1 * -3
-3 * 2
5* -4
Senior Manager
Joined: 16 Jul 2009
Posts: 261
Followers: 5

Kudos [?]: 325 [0], given: 3

Re: sequence gmat prep question. [#permalink]

Show Tags

31 Oct 2009, 10:57
IMO C, the question needs to be read well before arriving at the right option..
Re: sequence gmat prep question.   [#permalink] 31 Oct 2009, 10:57
Display posts from previous: Sort by