GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 24 Mar 2019, 20:46

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.

Close

Request Expert Reply

Confirm Cancel

How many 10-digit numbers can be formed using only the digits 2 and 5?

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 53801
How many 10-digit numbers can be formed using only the digits 2 and 5?  [#permalink]

Show Tags

New post 03 Jan 2019, 09:14
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

76% (00:46) correct 24% (01:25) wrong based on 28 sessions

HideShow timer Statistics

Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7442
Re: How many 10-digit numbers can be formed using only the digits 2 and 5?  [#permalink]

Show Tags

New post 03 Jan 2019, 11:17
Bunuel wrote:
How many 10-digit numbers can be formed using only the digits 2 and 5?

(A) 2^10
(B) (22)(5!)
(C) (5!)(5!)
(D) 10!/2
(E) 10!


There are 10 places to fill and each place can be taken by any of the two digits - 2 or 5.
Thus 2*2*..=2^10

A
_________________
GMAT Club Bot
Re: How many 10-digit numbers can be formed using only the digits 2 and 5?   [#permalink] 03 Jan 2019, 11:17
Display posts from previous: Sort by

How many 10-digit numbers can be formed using only the digits 2 and 5?

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.