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11 Jul 2025, 11:37
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Data sufficiency pro-tips that I have picked up while studying from GMAT ninja videos
Elimination Logic (While Solving)
Bonus point:
Correlation does not mean causation (very imp). In a lot of DS questions which is verbal heavy, there might be questions wherein you’ll see two things happening simultaneously, however until and unless there is an explicit mention that the incident 1 is what caused incident 2nd, please do not assume the same
- Read the question twice
Take a moment to slow down and understand exactly what’s being asked. Many DS traps are hidden in subtle phrasing, so reading it again helps you avoid misinterpretation. - Push the question
Before jumping into the statements, work with the information in the question stem. Create equations, define variables, or sketch diagrams. This gives you a strong base and often reveals key insights before even looking at the options. - Check as you go
Avoid careless mistakes. DS problems often rely on small details—signs, conditions, or constraints—that are easy to miss. Double-check your logic and calculations as you progress. - Answer what’s being asked
Stay focused on the end goal. Are you being asked for a specific value? A yes/no answer? Whether something must be true? Don’t get sidetracked solving something unrelated — always return to the original question.
Elimination Logic (While Solving)
- If Statement 1 is sufficient and you haven’t looked at Statement 2 yet, then your answer will be either:
- (A) if Statement 2 is not sufficient
- (D) if Statement 2 is also sufficient
- If Statement 1 is not sufficient, and you haven’t evaluated Statement 2 yet, then your answer must be:
- (B) if Statement 2 is sufficient
- (C) if both together are sufficient
- (E) if both together are still not sufficient
Bonus point:
Correlation does not mean causation (very imp). In a lot of DS questions which is verbal heavy, there might be questions wherein you’ll see two things happening simultaneously, however until and unless there is an explicit mention that the incident 1 is what caused incident 2nd, please do not assume the same
13 Jul 2025, 11:30
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Nice tips. Making a quick-info map when coming across questions where info is spread across multiple tabs can also be helpful.
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