Lesson: Data Sufficiency Challenging - 20t05

Multiple Steps: Example 2

[Page 20 of 24]

If m and n are positive integers, are m and n consecutive integers?

1)

2)

The question stem asks whether m and n are consecutive numbers. What are the two ways to represent this relationship algebraically?

m =

m =

Review Statement 1 below. Is it sufficient or insufficient? Select the correct answer and then click Continue.

1)

  Sufficient Insufficient    

Review Statement 2 below. Is it sufficient or insufficient? Select the correct answer and then click Continue.

2)

  Sufficient Insufficient    

For this statement, we don’t need to go through the steps because we recognize the expression on the right side of the equation as a "classic" algebraic identity: . So, in this case, . Once again, we have confirmation that n = m – 1 (which is the same as m = n + 1). Statement 2 is also sufficient.

This question wasn’t nearly as difficult as it first appeared, once we saw the steps we needed to take in order to reach our goal. The fastest way to get there was to look for an algebraic way to determine the relationship between n and m. We also could’ve picked numbers, though in a situation like this you have to be sure not to spend too much time trying out various pairs of consecutive integers.

Back Next

Next to display next topic in the chapter.

Test Prep Lessons With Video Lessons and Explained MCQ

Quantitative Aptitude Reasoning English General Knowledge Picture Patterns
More for You
MCQ with question Explanations Scholarships and Financial Aid

Quantitative Comparison

Learn techniques how to crack quantitative comparison section

Arithmetic

Lessons on Basic to Advance Arithmetic with practice questions

GMC Gomal Medical College

Gomal Medical College is situated in Dera-Ismail-Khan

All in this Category

You may be interested in

Colleges in Hydrabad

Find a comprehensive list of major ...

Colleges in karachi

A comprehensive list of major colle ...

Precis Writing

How to write Precis with solved exa ...

Visa and Immigration to Cyprus

How you can get Visa and Immigratio ...

MCAT for Medical College Admission Test

Learn and prepare MCAT for admissio ...

GRE Computer Science

Find all about GRE Computer Science ...

BZU - Bahauddin Zakariya University

BZU is a big university in Multan ( ...

Social Science Universities

List of universities in the field o ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA