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

It is currently 11 Dec 2018, 10:44

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
Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
  • Free GMAT Prep Hour

     December 11, 2018

     December 11, 2018

     09:00 PM EST

     10:00 PM EST

    Strategies and techniques for approaching featured GMAT topics. December 11 at 9 PM EST.
  • The winning strategy for 700+ on the GMAT

     December 13, 2018

     December 13, 2018

     08:00 AM PST

     09:00 AM PST

    What people who reach the high 700's do differently? We're going to share insights, tips and strategies from data we collected on over 50,000 students who used examPAL.

How many Mondays are in December of a particular year?

  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: 51100
How many Mondays are in December of a particular year?  [#permalink]

Show Tags

New post 22 Jan 2016, 09:34
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

33% (01:12) correct 67% (02:17) wrong based on 23 sessions

HideShow timer Statistics

Intern
Intern
User avatar
Joined: 19 Jan 2016
Posts: 45
How many Mondays are in December of a particular year?  [#permalink]

Show Tags

New post 22 Jan 2016, 19:59
Bunuel wrote:
How many Mondays are in December of a particular year?

(1) There are four Tuesdays that December.
(2) There are four Saturdays that December.


It is clear that there are 31 days in human December

31 = 7 x 4 weeks + 3

If December start with Sunday, so the last 3 days of this month are: Sun, Mon, and Tues:
Sun (1/12)
Sun (8/12)
Sun (15/12)
Sun (22/12)
Sun (29/12), Mon (30/12), Tue (31/12)

By this way of reasoning, we know that if December start with Sunday, this month will have 5 Sundays, 5 Mondays, and 5 Tuesdays.
Generalizing, to know how many Mondays in Dec, we must have an idea about how December start (or end)
If December start with Monday, Sunday, or Saturday, this month must have 5 Mondays, if not, 4 only.

(1) There are four Tuesdays that December. ==> NOT SUFFICIENT
it is clear that December can't start with Sunday, Monday, or Tuesdays => we can't decide exactly 5 or 4 Mondays because December may start with Monday - Saturday or Thursday

(2) There are four Saturdays that December ==> NOT SUFFICIENT
December can't start with Saturday, Friday, or Wednesday, but it may start with Sunday, Monday or Thursday

Now we combine (1) and (2) ==> December CANNOT start with: Sunday, Monday, Tuesday, Saturday, Friday, Wednesday

=> So it must start with Thursday only => therefore, there are 4 Mondays in December

=> C is the Answer.
_________________

---------------------------------------------------------
Please kudos me if this helps. Thank you.

Manager
Manager
avatar
S
Joined: 12 Mar 2015
Posts: 89
Concentration: Leadership, Finance
GPA: 3.9
WE: Information Technology (Computer Software)
Re: How many Mondays are in December of a particular year?  [#permalink]

Show Tags

New post 22 Jan 2016, 23:02
Bunuel wrote:
How many Mondays are in December of a particular year?

(1) There are four Tuesdays that December.
(2) There are four Saturdays that December.


has to be C.

1st December must be Saturday and 31st December as Tuesday.

therefore 4 Mondays.
GMAT Club Bot
Re: How many Mondays are in December of a particular year? &nbs [#permalink] 22 Jan 2016, 23:02
Display posts from previous: Sort by

How many Mondays are in December of a particular year?

  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®.