Because of the exception "X = 0" case, this statement is insufficient.
"Confusing-cause-with-effect"
A favorite GMAT CR fallacy.
Example: Every time I dream, I sleep.
Monday-to-Friday: Concept-building + PracticeSaturday: Re-attempt incorrectly answered questions + ConsolidateSunday: A full-length test with proper analysis
Schedule your GMAT (only) once you get your target score on 3 consecutive mocks!
Commas cannot join two independent clauses.Incorrect: Amy sings, she enjoys it.Correct: Amy sings; she enjoys it.Correct: Amy sings, and she enjoys it.
Understanding the "intended meaning" is the key to solving SC questions.
In a group of 100, 80 take tea, and 60 take coffee. How many take both?
Answer: Cannot be determined. Because we don't know how many take "neither".
"regard as" : Correct"regard to be" : Incorrect"regard" : Incorrect
Jack regards Tim as a genius. : Correct
"The fallacy of drawing a conclusion based on one entity’s comparison with oneself"
-A favorite GMAT CR fallacy.
Example: Jack improved his score by 200%. Inference: Jack performed well. - Incorrect
The mind-map-strategy for RCs
1.Skim through the first paragraph.Take your eyes off the screen.
2. Ask yourself the paragraph's "purpose" .Purpose is always very, very brief.Avoid paraphrasing the details.
3. Skim through the next paragraph.Take your eyes off.Ask yourself the paragraph's "purpose".Link the purpose of the first paragraph with that of the second.
4. Keep repeating Step 3 for all the subsequent paragraphs.
Don't exhaust official material early- it's a common mistake.Save it for the last few weeks.
In DS, when you are able to solve "too easily", you are probably missing a trap.
Q. Which integer is the highest common factor of four positive integers A, B, C, and D?(1) A= 27, B=49.
Unlike what many students will think, this statement is "Sufficient". Because no matter what "C" and "D" are, if HCF of "A" and "B" is 1, the answer is going to be "1".
120
In DS, "no" can very well be an answer.
Question: Is X = 7?(1): X is not a prime number.(1) is sufficient. Because (1) leads to "No, X is not equal to 7".
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