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

It is currently 26 Jun 2019, 03:17

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

2 men and 3 women are lined up in a row. What is the number of cases w

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

Hide Tags

 
Math Revolution GMAT Instructor
User avatar
V
Joined: 16 Aug 2015
Posts: 7501
GMAT 1: 760 Q51 V42
GPA: 3.82
2 men and 3 women are lined up in a row. What is the number of cases w  [#permalink]

Show Tags

New post 26 May 2016, 17:24
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

73% (01:39) correct 27% (01:41) wrong based on 83 sessions

HideShow timer Statistics


2 men and 3 women are lined up in a row. What is the number of cases where they stand with each other in turn? (The number of cases in which men (or women) do not stand next to each other)

A. 12
B. 15
C. 18
D. 21
E. 24

*An answer will be posted in 2 days.

_________________
MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only $79 for 1 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7765
Re: 2 men and 3 women are lined up in a row. What is the number of cases w  [#permalink]

Show Tags

New post 26 May 2016, 19:31
MathRevolution wrote:
2 men and 3 women are lined up in a row. What is the number of cases where they stand with each other in turn? (The number of cases in which men (or women) do not stand next to each other)

A. 12
B. 15
C. 18
D. 21
E. 24

*An answer will be posted in 2 days.


First place the 3 women in 3! ways....
then place 2 men in the two gaps created in between women in 2! ways..
total = \(3!*2! = 12\) ways
A
_________________
Senior Manager
Senior Manager
User avatar
Joined: 18 Jan 2010
Posts: 251
Re: 2 men and 3 women are lined up in a row. What is the number of cases w  [#permalink]

Show Tags

New post 27 May 2016, 02:01
MathRevolution wrote:
2 men and 3 women are lined up in a row. What is the number of cases where they stand with each other in turn? (The number of cases in which men (or women) do not stand next to each other)

A. 12
B. 15
C. 18
D. 21
E. 24

*An answer will be posted in 2 days.



First arrange 3 women. 3 women can be arranged in 3 places in 3! ways. Now

W Blank W BlankW

we have to fill the two blanks with 2 men. We can arrange 2 persons in 2 places in 2! ways.

3! * 2! = 12 ways.

A is the answer
Math Revolution GMAT Instructor
User avatar
V
Joined: 16 Aug 2015
Posts: 7501
GMAT 1: 760 Q51 V42
GPA: 3.82
Re: 2 men and 3 women are lined up in a row. What is the number of cases w  [#permalink]

Show Tags

New post 29 May 2016, 20:45
The list should be WMWMW. Hence, from women 3! And men 2!, we get (3!)(2!)=12. Therefore, the correct answer is A.
_________________
MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only $79 for 1 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"
VP
VP
avatar
P
Joined: 07 Dec 2014
Posts: 1198
2 men and 3 women are lined up in a row. What is the number of cases w  [#permalink]

Show Tags

New post 02 Dec 2018, 15:13
MathRevolution wrote:
2 men and 3 women are lined up in a row. What is the number of cases where they stand with each other in turn? (The number of cases in which men (or women) do not stand next to each other)

A. 12
B. 15
C. 18
D. 21
E. 24

*An answer will be posted in 2 days.


total possibilities=5!=120
required possibility is w,m,w,m,w
probability=3/5*2/4*2/3*1/2*1=1/10
1/10*120=12 cases
A
GMAT Club Bot
2 men and 3 women are lined up in a row. What is the number of cases w   [#permalink] 02 Dec 2018, 15:13
Display posts from previous: Sort by

2 men and 3 women are lined up in a row. What is the number of cases w

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


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