Official Guide Explanation:
Problem Solving #125

 

 

Background

This is just one of hundreds of free explanations I've created to the quantitative questions in The Official Guide for GMAT Review (12th ed.). Click the links on the question number, difficulty level, and categories to find explanations for other problems.

These are the same explanations that are featured in my "Guides to the Official Guide" PDF booklets. However, because of the limitations of HTML and cross-browser compatibility, some mathematical concepts, such as fractions and roots, do not display as clearly online.

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Solution and Metadata

Question: 125
Page: 169
Difficulty: 5 (Moderate)
Category 1: Algebra > Inequalities > other
Category 2: Arithmetic > Properties of Integers > Other

Explanation: If p and q are positive numbers and p divided by q is less than 1, p must be less than q. Since all of the answer choices contain fractions and we're looking for the answer choice that is greater than 1, we need the one in which the numerator is larger than the denominator. Since we know that p is less than q, (E) is the correct choice: since q must be greater than p, ((q)/(p)) must be greater than 1.

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