I would recommend to practice from the Official Guide.champmag wrote:Can anyone recommend a good source to solve DS from?
BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course
Redeem
Featured Course
Target Test Prep GMAT OnDemand
Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.
- 715+ score guarantee — highest in the industry (99th percentile)
- 52 chapters · 1,500+ lessons · 4,000+ practice questions
- 400 hours of video · 1,500+ instructor-led HD smartboard lessons
- 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
- 24/7 live support + weekly Zoom office hours with GMAT instructors
- TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
- 1,200+ flashcards + AI-powered study assistant & daily calendar
- OnDemand, LiveTeach & GMAT Bootcamp formats available
- Also: GRE, SAT Math & Executive Assessment courses
- MBA Admissions Consulting now available
- 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
- 200,000+ students served
- 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★
5.0
(559 reviews)
130-pt guarantee
$0 to start
then $127/mo
Souce of DS
Source: Beat The GMAT — Data Sufficiency |
GMAT/MBA Expert
-
Anurag@Gurome
- GMAT Instructor
- Posts: 3835
- Location: Milpitas, CA
- Thanked: 1854 times
- GMAT Score:770
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)
Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)
Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
The first trick is to understand how to approach DS.
First simplify the stem. Problems often have complicated stems that are much easier to work with once simplified.
Then, determine what information you would need to answer the question.
Once you thoroughly understand the stem look at the first statement. If it gives you the answer you need, the response is narrowed to A (1 only) or D (both). If it is not sufficient then your answers must be B (2 only, C (together)or E (not enough information).
Then look at the second statement. If it is sufficient, you are done.
If both statements are insufficient, you need to combine them, treating them as a single statement. Note that you only have to combine statements if EACH is insufficient by itself.
First simplify the stem. Problems often have complicated stems that are much easier to work with once simplified.
Then, determine what information you would need to answer the question.
Once you thoroughly understand the stem look at the first statement. If it gives you the answer you need, the response is narrowed to A (1 only) or D (both). If it is not sufficient then your answers must be B (2 only, C (together)or E (not enough information).
Then look at the second statement. If it is sufficient, you are done.
If both statements are insufficient, you need to combine them, treating them as a single statement. Note that you only have to combine statements if EACH is insufficient by itself.
Tani Wolff
