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:

Re: Data sufficiency - Inequalities and basic equation [#permalink]
26 Apr 2011, 11:32

If n is a positive integer and p = 3.021 × 10n, what is the value of n?

1. 3,021 < p < 302,100 2. 103 < p < 105

Are you asking for how to solve this? Here is how I would approach it

Look at it as p = 30.21*n

1. I would immediately see that setting n =100 would make p = 3021, so n>1000. Setting n = 10000 sets p = 302100.

Thus 100 > n > 10000 NOT SUFFICIENT

2. If we had n = 3 it would be ~90 , if we had n = 4 it would be ~120. Every other n would not work.

NOT SUFFICIENT

IMPORTANT:

This is not a valid DS question for the GMAT. The two options will never contradict each other. Option 2 clearly contradicts option 1. Option 1 allows for a giant range of values while option 2 implies there is no answer at all

Back to hometown after a short trip to New Delhi for my visa appointment. Whoever tells you that the toughest part gets over once you get an admit is...