This one is an Inequalities and Number Properties Data Sufficiency Question. You will most likely get questions that test indices, absolute value and inequalities in the GMAT quant section - in its potent variant - data sufficiency. I strongly recommend that you understand the basics … [Read more...]

## Number Properties & Probability

A Data Sufficiency Question - Number properties and ProbabilitySet A contains distinct integers: A = {2,4,6,-8,x,y}. When two numbers from this set are picked and multiplied, what is the probability that the product is less than zero?(1) x*y is not equal to zero.(2) |x| = |y|Correct Answer is choice … [Read more...]

## Arithmetic Mean

Here is an easy Descriptive Statistics Data Sufficiency QuestionWhat is the median of a set of 10 positive integers?1. The numbers are in an AP with the first term being 102. The arithmetic mean of these 10 numbers is 55Answer - Choice CExplanatory AnswerBreak down the process of solving any DS … [Read more...]

## GMAT : Percents, Profits

QuestionTwo products A and B that cost $2000 and $1000 respectively were marked up with a profit of x%. What is x?1. If a discount of (2x/5)% is offered on the marked price of product A and if product B is sold at the marked price, the profit made on both products will be the same.2. If the markup … [Read more...]

## 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 … [Read more...]

## 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 … [Read more...]

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