GMAT Data Sufficiency Problems | GMAT Number Properties & Inequalities | 3 GMAT Sample Questions

Solution to 3 GMAT Data Sufficiency Questions | GMAT Data Sufficiency Tutorials | GMAT Inequalities | GMAT Course Online

This set of 3 questions tests your understanding of basic number properties and inequalities. The question focuses on evaluating whether a given number is positive (or) negative and the importance of looking for exceptions and a framework to find those exceptions..

Question 1: 0:27
Is 'a' positive?
Statement 1: a = -a
Statement 2: a^2 = -a

Question 2: 4:54
Is 'a' negative?
Statement 1: a = -a
Statement 2: a^2 = -a

Question 3: 8:33
If 'a' and 'b' are real number, is ab positive?
Statement 1: (a+b)^2 is lesser than (a-b)^2
Statement 2: a = b

The correct answer for these questions are as follows:
Q1 | D; Q2 | A; Q3 | A

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