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In DS, beware of "exceptions".
Q. Is X positive?
(1) |X| = X.
Because of the exception "X = 0" case, this statement is insufficient.
Irrational: Can’t be presented in p/q form, where p and q are integers. Ex: √3, Pi
Rational: Can be presented in p/q form, where p and q are integers. Ex: 2, 0.45, 3/7, etc.
Practice RCs, everyday!The skill will help you in all sections and question types!!
Backup strategy: On the real GMAT, if you get an RC that you just can't comprehend......you must mark randomly and move on...- Don't let one RC decide the fate of your complete GMAT score.-- Rather, save time and get the remaining questions correct!
On the GMAT, ensure 'completing' each section.- "no attempts" attract greater penalty than "negative attempts" do.
Uncountable nouns are singular.Hair has grown. - CorrectSugar is sweet. - Correct
Range:
The difference between the greatest and smallest elements in a set.
Example: {10, 7, 5, -20, 10, 15, 25, 50, 100, 200, -100}
Range = 200 – (-100) = 200 + 100
= 300
Be cautious when you see "numbers" in CR questions.
- Often, the key to solving the question lies in those numbers.
1-week gap in prep hurts your progress by 3-weeks.
60% of the learning comes from analyzing mistakes!
Don't exhaust official material early- it's a common mistake.Save it for the last few weeks.
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".
120
“And” is the only conjunction that can join two singular nouns and make them plural.Jack and Joe are studying. - CorrectJack along with Joe is studying. - Correct
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