Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 23 May 2017, 13:43

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

Is the product of four consecutive even integers positive?

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Senior Manager
Joined: 06 Jul 2004
Posts: 470
Location: united states
Followers: 1

Kudos [?]: 116 [0], given: 0

Is the product of four consecutive even integers positive? [#permalink]

Show Tags

30 Jul 2007, 22:39
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Is the product of four consecutive even integers positive?

1) the sum of these integers is positive but smaller than 20.

2) the product of the smallest two of these integers is postive?
_________________

for every person who doesn't try because he is
afraid of loosing , there is another person who
keeps making mistakes and succeeds..

Senior Manager
Joined: 28 Jun 2007
Posts: 458
Followers: 3

Kudos [?]: 8 [0], given: 0

Show Tags

30 Jul 2007, 22:42
Both insufficient for me.

In hindsight, they might look to be sufficient. But the presence of zero in the even integers list will make both of em fail.
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5045
Location: Singapore
Followers: 31

Kudos [?]: 376 [0], given: 0

Show Tags

30 Jul 2007, 22:45
St1:
The 4 even integers could be 0,2,4,6 -> sum = 12. But product = 0
The 4 even integers could be 2,4,6,8 -> sum = 20. Out, since the sum must be less than 20. Sufficient.

St2:
Product of the smallest two even integer = positive. So we are pretty sure 0 is not in the list. The product of the four even integers must then be positive. Sufficient.

Ans D
Senior Manager
Joined: 28 Jun 2007
Posts: 458
Followers: 3

Kudos [?]: 8 [0], given: 0

Re: DI : product of the 4 integers. [#permalink]

Show Tags

30 Jul 2007, 22:55
Himalayan wrote:
shoonya wrote:
Is the product of four consecutive even integers positive?

1) the sum of these integers is positive but smaller than 20.
2) the product of the smallest two of these integers is postive?

C for me.

Yeah you are right... I totally missed making the connection between the "sum is +ve" and the "product of 2 smallest is +ve"
Senior Manager
Joined: 28 Jun 2007
Posts: 458
Followers: 3

Kudos [?]: 8 [0], given: 0

Show Tags

30 Jul 2007, 23:01
ywilfred wrote:
St1:
The 4 even integers could be 0,2,4,6 -> sum = 12. But product = 0
The 4 even integers could be 2,4,6,8 -> sum = 20. Out, since the sum must be less than 20. Sufficient.

St2:
Product of the smallest two even integer = positive. So we are pretty sure 0 is not in the list. The product of the four even integers must then be positive. Sufficient.

Ans D

Oooh... Looks like I missed the first one too. Its 2 AM and this is an indication that I should probably go and crash
Director
Joined: 26 Feb 2006
Posts: 901
Followers: 4

Kudos [?]: 123 [0], given: 0

Re: DI : product of the 4 integers. [#permalink]

Show Tags

30 Jul 2007, 23:05
Himalayan wrote:
shoonya wrote:
Is the product of four consecutive even integers positive?

1) the sum of these integers is positive but smaller than 20.
2) the product of the smallest two of these integers is postive?

C for me.

i should changed to A.

1: 4 consequtive integers could be : -2, 0, 2, and 4 or 0, 2, 4, and 6. in either case the product is not +ve. so suff.

2: it could be: (-6, -4, -2 and 0) or (-4, -2, 0 and 2) or (2, 4, 6, 8) or so on.. nsf.
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5045
Location: Singapore
Followers: 31

Kudos [?]: 376 [0], given: 0

Show Tags

31 Jul 2007, 00:17
ywilfred wrote:
St1:
The 4 even integers could be 0,2,4,6 -> sum = 12. But product = 0
The 4 even integers could be 2,4,6,8 -> sum = 20. Out, since the sum must be less than 20. Sufficient.

St2:
Product of the smallest two even integer = positive. So we are pretty sure 0 is not in the list. The product of the four even integers must then be positive. Sufficient.

Ans D

Darn... missed out negative evens.. should be A.
Director
Joined: 16 May 2007
Posts: 548
Followers: 2

Kudos [?]: 66 [0], given: 0

Show Tags

31 Jul 2007, 08:51
yes it is A.
Stmt 2 fails in these 2 cases : -4,-2 0 2 and 2 4 6 8. Insuff
31 Jul 2007, 08:51
Display posts from previous: Sort by

Is the product of four consecutive even integers positive?

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.