BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

DS problem from Gmatprep

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 51
Joined: Mon May 19, 2008 11:43 am
Location: Falls Church, VA
by daniyatom » Wed Aug 13, 2008 1:06 pm
First of all, thanks to everyone here for providing solutions to the problems that i have encountered.

This looks like an easy question, and I am convinced that the answer is E, but per GMATprep, the answer is C

A certain list consist of several different integers. Is the product of all integers in this list positive?
1)The product of the greatest and smallest of then integers in the list is positive
2) There is an even number of integers in that list.

Thanks
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Data Sufficiency |
Legendary Member
Posts: 661
Joined: Tue Jul 08, 2008 12:58 pm
Location: France
Thanked: 48 times

by pepeprepa » Wed Aug 13, 2008 2:21 pm
1)
Either all the numbers in the list are positive or all the numbers in the list are negative given we take the smallest and the biggest.
Nevertheless, we cannot say if the product of all the numbers is positive or negative given that it is possible that in the case of a list of only negative number, there is an odd number of integers.

2)
Does not help us, because it is possible there are some positive and some negative numbers.

1) and 2)
We know all the numbers are either all positive or all negative.
There is an even number of integers, so in case of the list with only negative integers, the product of them is positive. In the case of only positive integers, the product of them is positive.
So C
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Newbie | Next Rank: 10 Posts
Posts: 6
Joined: Thu Jul 24, 2008 10:03 pm

by sharad » Mon Aug 18, 2008 10:14 pm
Sorry but I dont understand the reasoning provided above...
"We know all the numbers are either all positive or all negative. "
I'm not sure how are you deriving on this

Why does list contains intergers with same sign... positive or negative
A list can be {-10,-9,6, -2}.
This also satifies the condition in 1 & 2

hence IMO E
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 69
Joined: Fri Jul 11, 2008 8:49 am
Thanked: 1 times

by uncbeers » Tue Aug 19, 2008 8:01 am
sharad wrote:Sorry but I dont understand the reasoning provided above...
"We know all the numbers are either all positive or all negative. "
I'm not sure how are you deriving on this

Why does list contains intergers with same sign... positive or negative
A list can be {-10,-9,6, -2}.
This also satifies the condition in 1 & 2

hence IMO E
Your example does not actually satisfy statement #1.

1)The product of the greatest and smallest of the integers in the list is positive

In your example -10 x 6 = -60. As long as the greatest integer is 0 or above your set of numbers does not work.

Make sense now?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Newbie | Next Rank: 10 Posts
Posts: 6
Joined: Thu Jul 24, 2008 10:03 pm

by sharad » Tue Aug 19, 2008 9:52 am
agree with you... C is correct
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1