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 Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Sequence S consists of 24 nonzero integers. If each term in [#permalink]
25 Nov 2007, 04:03

00:00

A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct
0% (00:00) wrong based on 0 sessions

Sequence S consists of 24 nonzero integers. If each term in S after the second is the product of the previous two terms, how many terms in S are negative?

1. The third term in S is positive.
2. The fourth term in S is negative.

Sequence S consists of 24 nonzero integers. If each term in S after the second is the product of the previous two terms, how many terms in S are negative?

1. The third term in S is positive. 2. The fourth term in S is negative.

I'm getting B.

Stat 1: All integers could be positive or first two negative. Number of negatives will vary. Insuff.

Stat 2: Only 2 sequences are possible:
-, -, +, -, -, + or -, +, -, -, +, -
In each case number of -ve integers will be 16. Suff.

A isnt sufficient because it means that either first two terms are both positive or both negative

B isnt sufficient because since 4th term is negative, could mean 2nd and 3rd terms are pos/neg, or neg/pos.

Together, we know 4th term is neg and 3rd is pos, therefore 2nd term has to be neg, and first term will be neg as well ... and fifth term will be neg and so on

Sequence S consists of 24 nonzero integers. If each term in S after the second is the product of the previous two terms, how many terms in S are negative?

1. The third term in S is positive. 2. The fourth term in S is negative.

I'm getting B.

Stat 1: All integers could be positive or first two negative. Number of negatives will vary. Insuff.

Stat 2: Only 2 sequences are possible: -, -, +, -, -, + or -, +, -, -, +, - In each case number of -ve integers will be 16. Suff.

I agree on B. either way (3 positive or 3 negative) result is 16 negatives. GKMat, how did you come up with the 16 negative total?

Sequence S consists of 24 nonzero integers. If each term in S after the second is the product of the previous two terms, how many terms in S are negative?

1. The third term in S is positive.
2. The fourth term in S is negative.

from one

the first 2 intigers are either +ve or both -ve

(-,-,+,-,-,+,-,-,+...24th ) 16 -ve

(+,+,+...24th) ..0 -ve insuff

from 2

(-,-,+,-,-,+.24th) 16-ve

(-,+,-,-,+,-,+,-,-,+,-,-,+..24th)16-ve( every 3 intigers 2 r -ve)

Sequence S consists of 24 nonzero integers. If each term in S after the second is the product of the previous two terms, how many terms in S are negative?

1. The third term in S is positive. 2. The fourth term in S is negative.

I'm getting B.

Stat 1: All integers could be positive or first two negative. Number of negatives will vary. Insuff.

Stat 2: Only 2 sequences are possible: -, -, +, -, -, + or -, +, -, -, +, - In each case number of -ve integers will be 16. Suff.

I agree on B. either way (3 positive or 3 negative) result is 16 negatives. GKMat, how did you come up with the 16 negative total?

If you see the bold-faced above, the pattern contains 6 integers and 4 negatives in each case. Since there are a total of 24 integers, there will be 4 such patterns of 6 integers in which 4 negatives are repeated each time. Therefore, total number of negatives will be 4*4=16.

This week went in reviewing all the topics that I have covered in my previous study session. I reviewed all the notes that I have made and started reviewing the Quant...

I was checking my phone all day. I wasn’t sure when I would receive the admission decision from Tepper. I received an acceptance from Goizueta in the early morning...

I started running as a cross country team member since highshcool and what’s really awesome about running is that...you never get bored of it! I participated in...