Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

Simplify Base - question re. one of the Flashcards from here

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Newbie | Next Rank: 10 Posts
Posts: 7
Joined: Fri Feb 13, 2009 11:43 am
by freezing » Sun Jul 26, 2009 3:49 am
Hi everyone,

I'm struggling with one of the awesome flashcards I downloaded here (thanks for those!).

It's called Simplify base (on page 70).

If 27^n = 9^4
Then (3^3)^n = (3^2)^4 => n = 8/3

I understand how to get from the first line to the second part. However, I don't understand how to get from there to n = 8/3. Could anyone help me out with this?

I'm noticing I have problems with these types of problems in general - questions involving powers and simplifying those. Any suggestions on where I might find help with that? (Preferably online, but I'm willing to buy books as well if needed)

Thanks in advance!
Top
Join the discussion
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 345
Joined: Wed Mar 18, 2009 6:53 pm
Location: Sao Paulo-Brazil
Thanked: 12 times
GMAT Score:660

by shibal » Sun Jul 26, 2009 5:37 am
step-by-step... hope it helps....

27=3*3*3=3^3
9=3*3=3^2

3^3n=3^8
3n=8
n=8/3


don't forget that when we have 3^3^n we multiply 3and n, becoming 3n... so for 3^2^4 it's actually 3^4*2= 3^8
Top
Join the discussion
Newbie | Next Rank: 10 Posts
Posts: 7
Joined: Fri Feb 13, 2009 11:43 am

by freezing » Sun Jul 26, 2009 5:48 am
Thank you shibal!

Yes, this helps. I didn't think about multiplying these, I somehow always get stuck there.
Top
Join the discussion