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.

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:

When I wrote (1), I meant the first part of the problem. If you see the expression, you will see that my choice was #2 (1.6 * 10 ^ 21).

KPadma,
It is asking for the expression which can be formatted in the form of n^4, where n is a integer. You will see why expression#2 (1.6 * 10 ^ 21) can be formatted into that form.

VT,
If (e) is the right answer then 1.6 * 10 ^24 can be expressed as n^4. Which is wrong even if ETS says it. Because, if you take
1.6 * 10 ^24
= 16 * 10^23
= 2^4 * 10 ^ 20 * 10^3
= 2^4 * (10^5)^4 * 1000
= (2*10^5)^4 * 1000

which clearly is not in the form n^4. If (E) is the answer, please recheck the question. Thanks

It’s been a long time, since I posted. A busy schedule at office and the GMAT preparation, fully tied up with all my free hours. Anyways, now I’m back...

Ah yes. Funemployment. The time between when you quit your job and when you start your MBA. The promised land that many MBA applicants seek. The break that every...