Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

If ab ≠ 0 and a^3b = ab^3, then which option must be true ? [#permalink]
09 Apr 2013, 05:44

1

This post received KUDOS

2

This post was BOOKMARKED

00:00

A

B

C

D

E

Difficulty:

35% (medium)

Question Stats:

64% (02:09) correct
36% (01:25) wrong based on 99 sessions

I got this question from Kaplan Daily GMAT question and wanted to share with all members of gmatclub for practice.

If ab ≠ 0 and \(a^3\)b = a\(b^3\), then which of the following must be true?

I. a = b II. a = –b III. ab = 1

Options : A. None B. I only C. III only D. I and III only E. I, II, and III ------------------------------------- Please press KUDOS if you like my post.

For this product to be zero, since ab≠ we can have: a=-b OR a= b

Let's look at the options: 1. DOES NOT HAVE TO BE TRUE. Take a = 1, b = -1, for instance 2. DOES NOT HAVE TO BE TRUE. Take a = 1, b = 1, for instance 3. DOES NOT HAVE TO BE TRUE. Take a = 2, b = 2, for instance

Re: If ab ≠ 0 and a^3b = ab^3, then which option must be true ? [#permalink]
01 Nov 2014, 20:11

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email. _________________

Type of Visa: You will be applying for a Non-Immigrant F-1 (Student) US Visa. Applying for a Visa: Create an account on: https://cgifederal.secure.force.com/?language=Englishcountry=India Complete...