Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
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.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 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
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
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
GMATOnDemandStart 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

timing

Expert replies
by rocknroll » Thu Nov 13, 2008 6:32 am
i always end up taking too long on ds questions. i usually have to pick numbers and feel that it takes forever to test a wide variety of numbers. is there a quick set of numbers i should test, so that after testing i can confidently say the statement is always true or always false?
Join the discussion
Source: — Data Sufficiency |

by stop@800 » Thu Nov 13, 2008 9:23 am
My suggestion is if possible avoid numbers.

btw, tobe 100% sure, the set you need to consider is

-2 -1 -1/2 0 1/2 1 2
Join the discussion

by cramya » Thu Nov 13, 2008 2:26 pm
RocknRoll,

Like stop said solving it generically is good i.e. we must atleast be able to pick up some hints from the statements , reorganize them(may not work for all questions) etc.. and then yes we can pick numbers to prove/disprove.

There is not a set defined way for solving DS questions as they come in different flavours. My suggestion would be to to get exposed to various problem types (this forum is great in getting us exposed to various problem types), practice and make notes of the takeaways(how the user has approached the ptroblem) from others solutions for each problem. This way we alteast know what to do if we see a problem of similar type(get the starter rolling.... i.e. if u can start the problem correctly then there is a good chance you may end up with the correct solution).

DS questions do have a huge learning curve unlike problem solving.

Let us know if u still have questions.



Refer to this post here where Mayoniie5 has outlined some strategies for picking numbers https://www.beatthegmat.com/my-blog-erro ... 99-75.html

This way u could increase the speed when picking numbers and evaluating
if need be. Picking numbers is equally good if we can do it fast enough...
(depends on the individual though but by pratcice this speed can be improved)


Also posts of this type (enquiry) can be posted on the GMAT STARTEGY section and there are experts on this forum that may be able to provde u with more valuable suggestions.

Sorry for the long post and Good luck!
Join the discussion

by rocknroll » Fri Nov 14, 2008 9:04 am
wow thank u both, and Cramya thank u soo much for the link to mayo's strategies. this is exactly what i was looking for - u all are the best!
Join the discussion