Skip to main content

Data Sufficiency

Top 10 Tips to Ace GMAT Data Sufficiency

Ever heard of a Math problem that you actually don't have to solve. If you have just started your GMAT prep, then this can be confusing. Don't worry! With some practice, your mind will be trained to think like a DS Wizard. Follow these 10 tips and you will be on your way to mastering GMAT Data Sufficiency.

1. Familiarize with the Answer Choices

No excuses: On Data Sufficiency, they’re always the same! Know in the blink of an eye what choice C is. On test day, if you find that Statement 1 is insufficient, be able to cross out choices A and D without hesitation.

How to use your Common sense in GMAT Data Sufficiency Questions?

Data Sufficiency questions are not the same as your regular "Find the value of x" question. GMAT DS Questions require you to adjust in your approach to Math Problems. You are not primarily concerned with the final answer, but rather whether you have enough information to get you to that answer. For example, if you’re asked to find the value of x, and a statement tells you that 300x + 257 = 1345, you know that this statement is sufficient, because you can perform arithmetic on that equation to isolate x.

Challenge your Faulty Assumptions and solve GMAT 700+ Critical Reasoning and Data Sufficiency Questions

GMAT Faulty Assumptions
During GMAT Preparation, Critical Reasoning and Data Sufficiency sections require a great deal of adjustment compared to GMAT Reading Comprehension and Sentence correction. The linear thinking that involve variables, data substitution, rules, and logical thinking might not completely work for 700+ GMAT CR and DS sections. Here is Why!

How to Save Time with GMAT Data Sufficiency Rephrasing Techniques

GMAT DS RephrasingTo score 700+ on the GMAT, test takers must develop a strategy to answer the Quant questions in 2 minutes and Verbal questions in 1 minute & 20 seconds.

Data sufficiency questions can be solved well within the 2-minute mark, most likely in 1 minute and 30 seconds if the conditions and question are rephrased.

Learn how to rephrase GMAT DS Questions and Improve your speed

What was the revenue that the movie theater earned from Friday to Sunday?

GMAT Data Sufficiency Movie TheaterWhat was the revenue that the movie theater earned from Friday to Sunday if the occupancy rate of its three screens 1, 2, and 3 were the following?

                        Friday       Saturday     Sunday        
Screen 1           85%            90%            90%
Screen 2            65%           50%            65%
Screen 3            50%           20%            15%  


1)    There are two ticket types in each screen  – Silver and Gold, Silver sold at $35 - $10 less than Gold
2)    The total number of seats in each screen was 500

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.

Find the answer

Is the sum of all the numbers between

Q) Is the sum of all the numbers between prime numbers x and y an even or an odd number?

1)    x = 3  y = 31
2)    y is the largest two digit number, x is even

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.

Find the answer

GMAT Data Sufficiency Process of Elimination Tips: How to Complete DS Questions in Less than One and Half Minutes

GMAT DS Process of Elimination
Once GMAT test takers have learned about the fundamental concepts tested in the exam, focus should be on saving time for each question. GMAT Data sufficiency follows a format where a question is followed by two statements, labeled as (1) and (2), and five answer choices. Process of Elimination techniques will allow you to complete the GMAT DS questions in less than one and half minutes. Learn more about GMAT Data Sufficiency POE Technique.

GMAT Data Sufficiency Trap: How test creators force you to pick Answer Choice C

GMAT DS Answer Choice C
GMAT test takers are more inclined to pick Answer Choice C in Data Sufficiency just as they would choose choice A in Sentence Correction. This trap in assumption is obvious to test creators, and they formulate the two statements carefully to force you to pick the wrong answer choice.

Watch out for this trap and know that the following three factors influence our ability to solve GMAT data sufficiency questions.

GMAT Data Sufficiency Strategy - Don’t Contradict Yourself

GMAT DS Dont Contradict Yourself
True to their name, Data Sufficiency questions ask you to determine when you will have enough information to make a conclusive decision.  In doing so, these questions can assess your ability to plan ahead for a task; to elicit an effective return-on-investment (remember, you can’t use both statements if one of them is, alone, sufficient), to find flaws with conventional wisdom, and to think flexibly. Find out why contradicting yourself can lead to errors in GMAT Data Sufficiency.

Essential GMAT Reading Comprehension Guide (2023 Edition)


Chapters

  • Collecting and Interpreting Facts: GMAT Reading Comprehension    

  • Effective Note-taking for GMAT Reading Comprehension   

  • 5 Questions to Speed up Summary Creation   

  • Mastering GMAT Reading Comprehension: 3 Best Practices   

  • How to Remember Information   

  • How to improve comprehension by Questioning the Author   

  • How to Read Faster   

  • How to Answer GMAT Reading Comprehension Title question

  • How to Answer GMAT Reading Comprehension Main Idea Question   

  • How to Answer GMAT Reading comprehension inference question   

  • How to Answer GMAT Reading Comprehension Purpose Question   

  • How to Answer GMAT Reading Comprehension Detail Question   

  • How to Answer the GMAT organization of passage Question   

  • How to Improve GMAT Reading Comprehension Score?   

Passage #1: Protein-Rich Diet    Passage #2: Pregnant Women and Stress Management   
Passage #3: F Losing Momentum   
Passage #4: Conservatives and Automation   
Passage #5: Collaboration, Team size and Performance   
Passage #6: Effective Altruism   
Passage #7: Loneliness Epidemic   
Passage #8: Space Exploration   
Passage #9: Lab-Grown Meat   
Passage #10: Minimum Wage in the US   
Passage #11: AI and Creativity   
Passage #12: Bias Against Healthcare in Developing Economies   
Passage #13: Legacy Admissions   
Passage #14: Plastic Ban and alternatives   
Passage #15: Underestimating Homo Sapiens   
Passage #16: Conspiracy Theories   
Passage #17: Relative Poverty   
Passage #18: Why Paintings are expensive   
Passage #19: US Obesity Epidemics   
Passage #20: The Future of Advertising   
Passage #21: Breaking Large Companies   
Passage #22: Helicopter Parenting   
Passage #23: Future of Democracy   
Passage #24: Technology and Global Citizenship  

Passage #25: Morality and Investment   

Answers: 157 to 294

Pages: 295

Questions: 100+

Download F1GMAT's Essential GMAT Reading Comprehension Guide (2023 Edition)

 

Mastering GMAT Critical Reasoning (2023 Edition)


Chapters
1) Introduction   
2) 6 Step Strategy to solve GMAT Critical Reasoning Questions   
3) How to overcome flawed thinking in GMAT Critical Reasoning?   
4) 4 GMAT Critical Reasoning Fallacies   
5) Generalization in GMAT Critical Reasoning   
6) Inconsistencies in Arguments   
7) Eliminate Out of Scope answer choices using Necessary and Sufficient Conditions   
8) Ad Hominem in GMAT Critical Reasoning   
9) Slippery Slope in GMAT Critical Reasoning   
10) Affirming the Consequent – GMAT Critical Reasoning   
11) How to Paraphrase GMAT Critical Reasoning Question   
12) How to Answer Assumption Question Type   
13) How to Answer Conclusion Question Type   
14) How to Answer Inference Question Type   
15) How to Answer Strengthen Question Type   
16) How to Answer Weaken Question Type   
17) How to Answer bold-faced and Summary Question Types   
18) How to Answer Parallel Reasoning Questions   
19) How to Answer the Fill in the Blanks Question   
Question Bank   
Question 1: 5G Technology (Inference)   
Question 2: Water Purifier vs. Minerals (Fill in the Blanks)   
Question 3: Opioid Abuse (Strengthens)   
Question 4: Abe and Japan’s Economy (Inference)   
Question 5: Indians and Pulse Import (Weakens)   
Question 6: Retail Chains in Latin America (Assumption)   
Question 7: American Tax Rates – Republican vs. Democrats (Inference)   
Question 8: AI – China vs the US (Weakens)   
Question 9: Phone Snooping (Strengthens)   
Question 10:  Traditional Lawns (Assumption)   
Question 11:  Appraisal-Tendency Framework (Inference)   
Question 12:  Meta-Analysis of Diet Trials (Weakens)   
Question 13:  Biases in AI (Strengthens)   
Question 14:  Stock Price and Effectiveness of Leadership (Inference)   
Question 15:  US Border Wall (Weakens)   
Question 16:  Driverless Car and Pollution (Assumption)   
Question 17:  Climate Change (Inference)   
Question 18:  Rent a Furniture (Weakens)   
Question 19:  Marathon Performance and Customized Shoes (Weakens)   
Question 20:  Guaranteed Basic Income (Assumption)   
Question 21:  Brexit (Infer)   
Question 22:  AB vs Traditional Hotels (Assumption)   
Question 23:  Tax Incentive and Job Creation (Weakens)   
Question 24:  Obesity and Sleeve Gastrectomy (Inference)   
Question 25:  Recruiting Executives (Weaken)   

Answers with Detailed Explanation
 
 
 
 

Do you want to work with the expert consultant who has consistently guided applicants to M7 and T20 MBA programs?  Sign up now!

F1GMAT's Services 

Read the Essay Guides and see how we write & edit MBA essays

 

Winning MBA Essay Guide - A Complete Guide for M7 and Top 15 MBA Application Essays 


F1GMAT's Winning MBA Essay guide will teach you how to transform your essay into a life journey with trials and tribulations that will move the admission team.

+ Over 245 Sample Essays (Read Previews of F1GMAT's Winning MBA Essay Guide Sample Essays here)

+ Top 15 MBA Programs (Harvard, Stanford, Wharton, Columbia, Booth, MIT, Kellogg, Yale, Haas, Darden, INSEAD, LBS, NYU Stern, Tuck, Duke Fuqua, Ross)
+ The Art of Storytelling 
+ Leadership Narratives
+ Review Tips
+ Persuasion Strategies
+ The Secret to "unleashing" your unique voice
+ How to prepare and present for the Video Essay
+ How to write about your Strengths
+ How to write about your Weaknesses
 
 
 

Want to try the individual school Essay Guides before upgrading to the Winning MBA Essay Guide? Try below.

F1GMAT's Essay Guides

 

Want to read the Essay Examples before purchasing the Essay Guides? 

 

Get Exclusive Events, Advice and Trends in your Inbox 

 

Not sure if an MBA Program is right for you? See our Premium Research.

F1GMAT Premium

Salary Trends