Last visit was: 19 Nov 2025, 21:18 It is currently 19 Nov 2025, 21:18
Home
GMAT
Messages
Tests
Schools
Events
Rewards
Chat
My Profile
Close
GMAT Club Daily Prep
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
User avatar
hgp2k
User avatar
Joined: 18 Aug 2009
Last visit: 02 Nov 2022
Posts: 192
Own Kudos:
791
Given Kudos: 13
Posts: 192
Kudos: 791
GMAT Club test M25: # 31 Updated on: 09 Nov 2009, 21:52
Originally posted by hgp2k on 09 Nov 2009, 21:47.
Last edited by hgp2k on 09 Nov 2009, 21:52, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Guys help me understand one thing here.

Is 3^3^3 = 3^9 or 3^27?
I think it should be 3^9 and not 3^27
Attachment:
M25-31.jpg

Archived Topic
Hi there,
Archived GMAT Club Tests question - no more replies possible.
Where to now? Try our up-to-date Free Adaptive GMAT Club Tests for the latest questions.
Still interested? Check out the "Best Topics" block below for better discussion and related questions.
Thank you for understanding, and happy exploring!
User avatar
srini123
User avatar
Joined: 13 Oct 2009
Last visit: 17 Feb 2021
Posts: 152
Own Kudos:
264
Given Kudos: 38
Affiliations: PMP
Posts: 152
Kudos: 264
GMAT Club test M25: # 31 09 Nov 2009, 21:51
Kudos
Add Kudos
Bookmarks
Bookmark this Post
3^3=27

and 3^3^3 = 3^27

where is the doubt ?
User avatar
swatirpr
User avatar
Joined: 13 Oct 2009
Last visit: 18 Jul 2011
Posts: 62
Own Kudos:
396
Given Kudos: 66
Location: USA
Schools:IU KSB
Posts: 62
Kudos: 396
GMAT Club test M25: # 31 09 Nov 2009, 21:53
Kudos
Add Kudos
Bookmarks
Bookmark this Post
hgp2k
Guys help me understand one thing here.

Is 3^3^3 = 3^9 or 3^27?
I think it should be 3^9 and not 3^27
Show more


It is 3^27

3^3^3 = 3^(3^3) = 3^27
User avatar
hgp2k
User avatar
Joined: 18 Aug 2009
Last visit: 02 Nov 2022
Posts: 192
Own Kudos:
791
Given Kudos: 13
Posts: 192
Kudos: 791
GMAT Club test M25: # 31 09 Nov 2009, 21:55
Kudos
Add Kudos
Bookmarks
Bookmark this Post
srini123
3^3=27

and 3^3^3 = 3^27

where is the doubt ?
Show more

srini123
I can understand if the question is: 3^(3^3). In this case we have to solve the bracket first. But the question does not say that. So according to basic rules of exponents, it should be 3^(3*3) = 3^9 and not 3^27.
User avatar
srini123
User avatar
Joined: 13 Oct 2009
Last visit: 17 Feb 2021
Posts: 152
Own Kudos:
264
 [2]
Given Kudos: 38
Affiliations: PMP
Posts: 152
Kudos: 264
 [2]
GMAT Club test M25: # 31 09 Nov 2009, 22:00
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
hgp2k
srini123
3^3=27

and 3^3^3 = 3^27

where is the doubt ?

srini123
I can understand if the question is: 3^(3^3). In this case we have to solve the bracket first. But the question does not say that. So according to basic rules of exponents, it should be 3^(3*3) = 3^9 and not 3^27.
Show more
- also I didn't quite get where did the * come from ? I see now, \(((3^3)^3 = 3^9)\), but for the one in question we need to apply precedence of operators (see below)

As per precedence of power, 3^3^3 = 3^(3^3)

see https://en.wikipedia.org/wiki/Order_of_operations
specifically, example
2. Evaluate exponential powers; for iterated powers, start from the right:

2^{3^2}=2^{[3^2]}=[2^9]=512
User avatar
hgp2k
User avatar
Joined: 18 Aug 2009
Last visit: 02 Nov 2022
Posts: 192
Own Kudos:
791
Given Kudos: 13
Posts: 192
Kudos: 791
GMAT Club test M25: # 31 09 Nov 2009, 22:08
Kudos
Add Kudos
Bookmarks
Bookmark this Post
okay, I got it now. Thanks Srini +1 for quick answer and all your help :)
avatar
dzyubam
avatar
Joined: 02 Oct 2007
Last visit: 30 Jul 2013
Posts: 877
Own Kudos:
1,364
Given Kudos: 334
Posts: 877
Kudos: 1,364
GMAT Club test M25: # 31 10 Nov 2009, 00:48
Kudos
Add Kudos
Bookmarks
Bookmark this Post
This question has already been discussed:
gmat-test-m25-master-thread-all-discussions-78460.html

Please don't create double posts on the same questions. You can search this thread:
gmat-club-tests-master-threads-all-tests-78599.html

Also, don't forget to use forum search and Custom Google Search for the same purpose.

Thank you :).
User avatar
hgp2k
User avatar
Joined: 18 Aug 2009
Last visit: 02 Nov 2022
Posts: 192
Own Kudos:
791
Given Kudos: 13
Posts: 192
Kudos: 791
GMAT Club test M25: # 31 10 Nov 2009, 05:10
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Thanks dzyubam! I will take care of it going further.

Archived Topic
Hi there,
Archived GMAT Club Tests question - no more replies possible.
Where to now? Try our up-to-date Free Adaptive GMAT Club Tests for the latest questions.
Still interested? Check out the "Best Topics" block above for better discussion and related questions.
Thank you for understanding, and happy exploring!
Moderator:
Bunuel
Math Expert
105390 posts