Here is an interesting question from Descriptive Statistics. The question tests your basic understanding of Mean, Median and ModeQuestionAn analysis of the monthly incentives received by 5 salesmen : The mean and median of the incentives is $7000. The only mode among the observations is $12,000. Incentives paid to each salesman were in full thousands. What is the difference … [Read more...] about Mean, Median & Mode – Descriptive Statistics
GMAT Quant Theory & Practice Questions
DS Equations, Roots
A DS question on equations and roots. QuestionIs y = 7?1. (x - 3) = 02. (x - 3)(y - 7) = 0Correct Answer : Choice E. Data is insufficientExplanatory AnswerThe given question is an "Is" question. The data provided is sufficient to answer the question if we are able to conclusively answer with an Yes or a No to the question. Else the data is … [Read more...] about DS Equations, Roots
Number Properties DS – Remainders, divisors
Quite a lot of interesting DS questions appear from Number Properties and Number Theory. Here is one such question.When a positive integer 'x' is divided by a divisor 'd', the remainder is 24. What is d?1. When 2x is divided by d, the remainder is 23.2. When 3x is divided by d, the remainder is 22.Correct AnswerChoice A. Statement 1 alone is sufficient; statement 2 is not … [Read more...] about Number Properties DS – Remainders, divisors
Coordinate Geometry DS – Slope of Lines
Here is a data sufficiency question from Coordinate geometry. Is the slope 'm' of the line y = mx + c positive? 1. The x and y intercepts are both negative. 2. The line passes through the first quadrant.Correct Answer : Choice A. Statement 1 alone is sufficient.Explanatory AnswerPositive Sloping Lines : The x and y intercepts of the line are of opposite signs. If the x … [Read more...] about Coordinate Geometry DS – Slope of Lines
GMAT Descriptive Statistics : Averages
Question If the average of 5 positive integers is 40 and the difference between the largest and the smallest of these 5 numbers is 10, what is the maximum value possible for the largest of these 5 integers? A. 50B. 52C. 49D. 48E. 44 Correct Answer : Choice D. 48 ExplanationThe average of 5 positive integers is 40. i.e., the sum of these integers = 5*40 = 200 Let … [Read more...] about GMAT Descriptive Statistics : Averages