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:

20/2^5=1/2^m+1/2^n,where m and n are integers, mn=?

mn=3, is it right? Assume that m>n 5 x 2^(m+n)= 8 x 2^n x[2^(m-n)+1] So 2^(m-n)+1=5 So m-n=2 => m=n+2 Then 5*26(2n+2)=8*2^n*5 => 2n+2=n+3 Then n=1, m=2

20/2^5=1/2^m+1/2^n,where m and n are integers, mn=?

mn=3, is it right? Assume that m>n 5 x 2^(m+n)= 8 x 2^n x[2^(m-n)+1] So 2^(m-n)+1=5 So m-n=2 => m=n+2 Then 5*26(2n+2)=8*2^n*5 => 2n+2=n+3 Then n=1, m=2

Here is my question. I simplified it down to 2^m + 2^n / 2^m+n = 5/8 ... then i equated the numerators to each other, and the denominators to each other, i.e.:

2^m + 2^n = 5 2^m+n = 8

this gave me two different answers .... where did i go wrong ?

Can you teach businessmen to be ethical? : he mind is divided into two parts that sometimes conflict, like a small rider sitting on the back of a very...

HBS: Reimagining Capitalism: Business and Big Problems : Growing income inequality, poor or declining educational systems, unequal access to affordable health care and the fear of continuing economic distress...

Over the last week my Facebook wall has been flooded with most positive, almost euphoric emotions: “End of a fantastic school year”, “What a life-changing year it’s been”, “My...