An interesting number properties question that tests your understanding of odd numbers, even numbers and inequalities.QuestionIf x is a positive integer such that (x-1)(x-3)(x-5)....(x-93) < 0, how many values can x take?A. 47B. 23C. 46D. 21E. 22Explanation VideoOr click for explanatory answer in text format. Correct Answer: Choice B … [Read more...]

## GMAT Number Theory LCM HCF

An interesting Problem Solving question from Number TheoryIf the LCM of two numbers a and b is 1104 and their HCF is 4, which of the following MUST be true?I. a * b = 4416 II. a and b are both divisible by 8 III. a : b = 48 : 23A. I onlyB. II onlyC. I and III onlyD. II and III onlyE. I, II, and III … [Read more...]

## Simple Number Properties Question

If the integer N = 139,k50 where k is the hundreds digit, N can NEVER be divisible by which of the following?A. 2B. 3C. 4D. 6E. 9 … [Read more...]

## GMAT Mixtures – Problem Solving Question

60% of the students in a class are instate students. 60% of the students in the class are women. If there are twice as many instate men in the class as are instate women, and the number of instate men exceeds instate women by 12, how many more women in the class are not instate women?A. 12B. 60C. 48D. 24E. 0 … [Read more...]

## 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...]