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
GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
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 Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget 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.

tough DS

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
User avatar
Master | Next Rank: 500 Posts
Posts: 392
Joined: Sun May 16, 2010 2:42 amFollowed by: 10 members
Location: Bangalore, India
Thanked: 116 times
GMAT Score:770

by albatross86 » Sun Jul 25, 2010 4:34 am
p < q and p < r .... Is pqr < p ?

1. pq < 0

Thus, p and q must be of opposite signs. However since p < q , this means p must be the negative one.

=> p < 0 and q > 0

We also have p < r ... however this doesn't tell us whether r is positive or negative.

If r > 0 => pqr < 0
If r < 0 => pqr > 0

INSUFFICIENT

2. pr < 0

This is exactly analogous to the previous statement, except here we are confused about the sign of q.

INSUFFICIENT

Both 1 and 2:

pq < 0 and pr < 0 tells us that : p < 0 , q > 0 and r > 0

This means that pqr is going to be < 0

However we know nothing about the relative absolute values of the quantities pqr and p, which would be necessary to identify which is the greater negative quantity.

For example: If p = -1 and q = r = 0.5 => pqr = -0.25 which is > p
But, If p = -1 and q = r = 2 => pqr = -4 which is < p

INSUFFICIENT

Pick E
~Abhay

Believe those who are seeking the truth. Doubt those who find it. -- Andre Gide
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 516
Joined: Mon Nov 02, 2009 6:42 amFollowed by: 1 member
Location: Mumbai
Thanked: 14 times
GMAT Score:710

by ankurmit » Sun Jul 25, 2010 5:10 am
Thanks dear..u are right :)
--------
Ankur mittal
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1460
Joined: Tue Dec 29, 2009 1:28 amFollowed by: 7 members
Thanked: 135 times

by selango » Sun Jul 25, 2010 9:13 am
albatross86 wrote:p < q and p < r .... Is pqr < p ?

1. pq < 0

Thus, p and q must be of opposite signs. However since p < q , this means p must be the negative one.

=> p < 0 and q > 0

We also have p < r ... however this doesn't tell us whether r is positive or negative.

If r > 0 => pqr < 0
If r < 0 => pqr > 0

INSUFFICIENT

2. pr < 0

This is exactly analogous to the previous statement, except here we are confused about the sign of q.

INSUFFICIENT

Both 1 and 2:

pq < 0 and pr < 0 tells us that : p < 0 , q > 0 and r > 0

This means that pqr is going to be < 0

However we know nothing about the relative absolute values of the quantities pqr and p, which would be necessary to identify which is the greater negative quantity.

For example: If p = -1 and q = r = 0.5 => pqr = -0.25 which is > p
But, If p = -1 and q = r = 2 => pqr = -4 which is < p

INSUFFICIENT

Pick E
Abhay is back!!!

As usual gr8 explanation......
--Anand--
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 418
Joined: Sun Jul 04, 2010 12:48 pmFollowed by: 3 members
Thanked: 6 times

by gmatdriller » Fri Sep 23, 2011 10:38 pm
By the same token:
(1) if pq < 0, from stem and (1) we know that p<0
so, question can be rephrased from pqr < p to
qr > 1?....(since p < 0 )
Insufficient since we don't know sign of q.

(2) pr < 0
Also, implies p<0, and original question changes from
"pqr < p" to "qr > 1?" sign reverses since p<0.
Insufficient for same reason as in (1).

(1) and (2): p<0, q>0, and r>0:
" qr > 1?"
we don't know whether q and r are either integers or fractions
Insufficient.
OA is E as proved earlier.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 10
Joined: Wed Oct 27, 2010 12:45 pm

by golfstream700 » Mon Sep 26, 2011 1:06 pm
(1) p<0, q>0 we don't know r so INSUFFICIENT
(2) p<0, r>0 we don't know q so INSUFFICIENT
COMBO: p<0, q,r>0 but we don't q and r greater than 1 so INSUFFICIENT
answer is E
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1