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 500,000 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:

Re: The figure above shows two entries, indicated by m and n, in [#permalink]

Show Tags

10 Jan 2014, 20:45

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.
_________________

Forget conventional ways of solving math questions. In DS, Variable approach is the easiest and quickest way to find the answer without actually solving the problem. Remember equal number of variables and independent equations ensures a solution.

The figure above shows two entries, indicated by m and n, in an addition table. What is the value of n + m?

(1) d + y = -3 (2) e + z = 12

When you modify the original condition and the question, n+m=(e+y)+(d+z)=(e+z)+(y+d)=?. Then you need all 1) & 2) and therefore the answer is C.

Once we modify the original condition and the question according to the variable approach method 1, we can solve approximately 30% of DS questions.
_________________

The figure above shows two entries, indicated by m and n, in [#permalink]

Show Tags

03 Nov 2016, 13:42

1

This post received KUDOS

Top Contributor

marcodonzelli wrote:

The figure above shows two entries, indicated by m and n, in an addition table. What is the value of n + m?

(1) d + y = -3 (2) e + z = 12

Target question:What is the value of n + m? Notice that the table tells us that m = d + z and that n = e + y So, m + n = (d + z) + (e + y) So we can REPHRASE the target question... REPHRASED target question:What is the value of d + z + e + y?

Statement 1: d + y = -3 This information provides only half of the information we need. We still need the values of z and e in order to find the sum of d + z + e + y Since we cannot answer the REPHRASED target question with certainty, statement 1 is NOT SUFFICIENT

Statement 2: e + z = 12 This information provides only half of the information we need. We still need the values of d and y in order to find the sum of d + z + e + y Since we cannot answer the REPHRASED target question with certainty, statement 2 is NOT SUFFICIENT

Statements 1 and 2 combined Statement 1 tells us that d + y = -3 Statement 2 tells us that e + z = 12 So, d + z + e + y = (d + y) + (e + z) = (-3) + (12) = 9 Since we can answer the REPHRASED target question with certainty, the combined statements are SUFFICIENT

It’s quickly approaching two years since I last wrote anything on this blog. A lot has happened since then. When I last posted, I had just gotten back from...

Since my last post, I’ve got the interview decisions for the other two business schools I applied to: Denied by Wharton and Invited to Interview with Stanford. It all...

Marketing is one of those functions, that if done successfully, requires a little bit of everything. In other words, it is highly cross-functional and requires a lot of different...