Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Sep 1507:00 PM EDT
-09:00 PM EST
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 1808:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Sep 2107:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
Wed Dec 28, 2016 12:48 am
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
89% (00:49) correct
11%
(00:57)
wrong
based on 132
sessions
History
Date
Time
Result
Not Attempted Yet
If six marbles are being chosen from a jar of 27 different marbles to play a game. How many different sets of 6 can be chosen?
A. 27!
B. 27!/4!
C. 27!/6!
D. 27!/(21!4!)
E. 27!/(21!6!)
A. 27!
B. 27!/4!
C. 27!/6!
D. 27!/(21!4!)
E. 27!/(21!6!)
Wed Dec 28, 2016 10:54 am
Kudos
Bookmarks
Bunuel
\(27C_6 = \frac{27!}{(21!6!)}\)
Answer will be (E) \(\frac{27!}{(21!6!)}\)
Fri Jan 20, 2017 8:48 am
Kudos
Bookmarks
Choosing in a set do not have ordering. Choose \(6\) out of \(27\) :
\(27C6\)
\(\frac{27!}{21!6!}\)
\(27C6\)
\(\frac{27!}{21!6!}\)
