An interesting number properties question that tests your understanding of odd numbers, even numbers and inequalities. Question If x is a positive integer such that (x-1)(x-3)(x-5)....(x-93) < 0, how many values can x take? A. 47 B. 23 C. 46 D. 21 E. 22 Correct Answer Choice B. x can take 23 values. Explanation Video … [Read more...] about GMAT PS : Inequalities & Number Properties

# GMAT Algebra Theory & Practice Questions

## Inequalities and Number Properties DS

Inequalities and Number Properties Data Sufficiency QuestionIf m,n ≠0, is m^n > n^n? (1) |m| = n(2) m < n … [Read more...] about Inequalities and Number Properties DS

## Problem Solving – Equations

GMAT Problem Solving QuestionIn a test comprising 50 questions, a student attempts all questions. For every correct answer the student is awarded 1 mark. She will get negative marks for incorrect answers as per the following rule.1. 0.25 negative mark for each of the first 10 incorrect answer.2. 0.5 negative mark for each incorrect answer, from the 11th to the 20th.3. 0.75 … [Read more...] about Problem Solving – Equations

## GMAT Data Sufficiency Practice : Inequalities & Number Properties

QuestionIs a + b > 0?1. a - b > 02. |a| < |b|Correct Answer is Choice C. Both statements together are sufficient to answer the question.Explanatory AnswerAn "IS" question is answered when you can provide a definite YES or a definite NO as an answer to the question using the data.We need to answer if a + b > 0.Statement 1: a - b > 0.We can infer that a > b.If … [Read more...] about GMAT Data Sufficiency Practice : Inequalities & Number Properties

## GMAT DS : Quadratic Equation

A relatively easy Data Sufficiency question. Combines concepts in quadratic equation and inequalities involving quadratic expressions.Is x = 3?1. x2 + 6x + 9 = 02. x2 + 7x - 21 > 0The correct answer is Choice A. Statement 1 alone is sufficient; statement 2 is not. Explanatory Answer The question to be answered is "Is x = 3?". An "Is" question is answered if you are able to … [Read more...] about GMAT DS : Quadratic Equation