Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 20 Aug 2014, 13:09

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Hardest Area Questions: "Probability and Combinations"

 Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Math Expert
Joined: 02 Sep 2009
Posts: 19030
Followers: 3361

Kudos [?]: 24394 [61] , given: 2677

Hardest Area Questions: "Probability and Combinations" [#permalink]  20 Sep 2010, 00:04
61
KUDOS
Expert's post
17
This post was
BOOKMARKED
Hardest Area Questions: "Probability and Combinations Questions With Solutions".

This is the third part of the tough questions with solutions, this time PS Probability and Combinations Questions.
DS questions at: 700-gmat-data-sufficiency-questions-with-explanations-100617.html
PS questions at: tough-problem-solving-questions-with-solutions-100858.html

Hope it helps.
Attachments

Probability and Combinations.doc [316 KiB]

_________________
 Kaplan Promo Code Knewton GMAT Discount Codes Manhattan GMAT Discount Codes
Status: How can I crack Verbal
Joined: 12 May 2011
Posts: 209
Location: India
Concentration: General Management, Finance
GMAT 1: 700 Q51 V32
GPA: 3
Followers: 2

Kudos [?]: 19 [0], given: 33

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  15 Aug 2011, 05:13
1 basic question though..are these questions relevant wrt the GMAT type questions or are these random questions that have interested you..
my question is primarily for Inequalities,700+ DS questions and P&C questions..

Thanks,
LC
Manager
Status: Trying hard to give another shot!
Joined: 29 Jun 2010
Posts: 108
GMAT 1: 610 Q45 V29
WE: Information Technology (Computer Software)
Followers: 1

Kudos [?]: 44 [0], given: 34

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  11 Oct 2011, 01:30
Awesome collection!! Thanks
_________________

Thanks,
GC24

Please click Kudos ,if my post helped you

Intern
Status: Stay Hungry, Stay Foolish.
Joined: 05 Sep 2011
Posts: 41
Location: India
Concentration: Marketing, Social Entrepreneurship
GMAT 1: 650 Q V
Followers: 0

Kudos [?]: 7 [0], given: 6

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  17 Oct 2011, 03:33
The Question on Denise : Q. No.2
In my Opinion has a simpler solution than the one stated in the document.

We shall look at it in the following way :
P = {1- (Probability of getting that One right combination in the 75 trials) }

P = 1 -{ C(75,1) / C(4000,1) }
P = 157/160

Option C.
Manager
Joined: 28 Jul 2011
Posts: 114
Followers: 0

Kudos [?]: 1 [0], given: 6

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  07 Nov 2011, 08:37
Thanks. Great questions.
Manager
Joined: 02 Feb 2012
Posts: 195
Location: United States
GPA: 3.08
Followers: 1

Kudos [?]: 2 [0], given: 104

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  14 Mar 2012, 15:36
Thank you for this resource! Very helpful.
Manager
Joined: 27 Oct 2011
Posts: 191
Location: United States
Concentration: Finance, Strategy
GMAT 1: Q V
GPA: 3.7
WE: Account Management (Consumer Products)
Followers: 2

Kudos [?]: 37 [0], given: 4

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  23 Apr 2012, 17:24
thank you... this is one of my weaker points on the GMAT. This will come in handy. Thanks again.
_________________

DETERMINED TO BREAK 700!!!

BSchool Forum Moderator
Joined: 27 Aug 2012
Posts: 1101
Followers: 77

Kudos [?]: 466 [0], given: 102

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  04 Feb 2013, 01:46
Expert's post
Bunuel wrote:
Hardest Area Questions: "Probability and Combinations Questions With Solutions".

This is the third part of the tough questions with solutions, this time PS Probability and Combinations Questions.
DS questions at: 700-gmat-data-sufficiency-questions-with-explanations-100617.html
PS questions at: tough-problem-solving-questions-with-solutions-100858.html

Hope it helps.

Hi Bunuel,
This is an awesome collection man followed by great explanations...Kudos !

Could you please let me know whether there are any further CONSOLIDATED COLLECTION of questions in you sig.(although apparently I don't find any other consolidated one...) or anywhere in the forum (which have been reviewed by you/bb/walker or any other experts) on 'Probability and Combinations' especially for 700+ category ?

It would of great help if you kindly let me know whether any discussion on the followings are available in the forum or not (as referred in the GMAT Club Math book):
1.The Official Guide,Quantitative 2th Edition: PS #79; PS #160
2.The Official Guide, 11th Edition: DT #4; DT #7; PS #10; PS #64; PS #173; PS #217; PS #231; DS #82; DS #114;

As I don't have the OG11 and Quant OG 2,so please share the links,if any.
_________________
Math Expert
Joined: 02 Sep 2009
Posts: 19030
Followers: 3361

Kudos [?]: 24394 [0], given: 2677

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  04 Feb 2013, 03:48
Expert's post
debayan222 wrote:
Bunuel wrote:
Hardest Area Questions: "Probability and Combinations Questions With Solutions".

This is the third part of the tough questions with solutions, this time PS Probability and Combinations Questions.
DS questions at: 700-gmat-data-sufficiency-questions-with-explanations-100617.html
PS questions at: tough-problem-solving-questions-with-solutions-100858.html

Hope it helps.

Hi Bunuel,
This is an awesome collection man followed by great explanations...Kudos !

Could you please let me know whether there are any further CONSOLIDATED COLLECTION of questions in you sig.(although apparently I don't find any other consolidated one...) or anywhere in the forum (which have been reviewed by you/bb/walker or any other experts) on 'Probability and Combinations' especially for 700+ category ?

It would of great help if you kindly let me know whether any discussion on the followings are available in the forum or not (as referred in the GMAT Club Math book):
1.The Official Guide,Quantitative 2th Edition: PS #79; PS #160
2.The Official Guide, 11th Edition: DT #4; DT #7; PS #10; PS #64; PS #173; PS #217; PS #231; DS #82; DS #114;

As I don't have the OG11 and Quant OG 2,so please share the links,if any.

DS Question Directory by Topic and Difficulty: ds-question-directory-by-topic-difficulty-128728.html
PS Question Directory by Topic and Difficulty: gmat-ps-question-directory-by-topic-difficulty-127957.html

All OG13 questions with solutions: the-official-guide-quantitative-question-directory-143450.html
_________________
BSchool Forum Moderator
Joined: 27 Aug 2012
Posts: 1101
Followers: 77

Kudos [?]: 466 [0], given: 102

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  04 Feb 2013, 04:21
Expert's post
Bunuel wrote:
debayan222 wrote:
Bunuel wrote:
Hardest Area Questions: "Probability and Combinations Questions With Solutions".

This is the third part of the tough questions with solutions, this time PS Probability and Combinations Questions.
DS questions at: 700-gmat-data-sufficiency-questions-with-explanations-100617.html
PS questions at: tough-problem-solving-questions-with-solutions-100858.html

Hope it helps.

Hi Bunuel,
This is an awesome collection man followed by great explanations...Kudos !

Could you please let me know whether there are any further CONSOLIDATED COLLECTION of questions in you sig.(although apparently I don't find any other consolidated one...) or anywhere in the forum (which have been reviewed by you/bb/walker or any other experts) on 'Probability and Combinations' especially for 700+ category ?

It would of great help if you kindly let me know whether any discussion on the followings are available in the forum or not (as referred in the GMAT Club Math book):
1.The Official Guide,Quantitative 2th Edition: PS #79; PS #160
2.The Official Guide, 11th Edition: DT #4; DT #7; PS #10; PS #64; PS #173; PS #217; PS #231; DS #82; DS #114;

As I don't have the OG11 and Quant OG 2,so please share the links,if any.

DS Question Directory by Topic and Difficulty: ds-question-directory-by-topic-difficulty-128728.html
PS Question Directory by Topic and Difficulty: gmat-ps-question-directory-by-topic-difficulty-127957.html

All OG13 questions with solutions: the-official-guide-quantitative-question-directory-143450.html

Thanks bunuel..

Can you give any idea on the above highlighted part ?
_________________
Math Expert
Joined: 02 Sep 2009
Posts: 19030
Followers: 3361

Kudos [?]: 24394 [0], given: 2677

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  04 Feb 2013, 04:26
Expert's post
I think that all these questions were already discussed on the forum, so you could try to search.
_________________
BSchool Forum Moderator
Joined: 27 Aug 2012
Posts: 1101
Followers: 77

Kudos [?]: 466 [0], given: 102

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  08 Feb 2013, 09:59
Expert's post
Bunuel wrote:
I think that all these questions were already discussed on the forum, so you could try to search.

Bunuel,
Actually I don't have either of OG Quantitative 2th Edition or OG 11th Edition..So it's bit tough for me to search this individual question..Not only these but also all the questions(from these two books) referred by you/bb in GMAT Club Math book.

So,can you please let me know if there is any particular thread in the forum that contains the link to the discussions of ALL questions from OG Quantitative 2th Edition or OG 11th Edition..?

_________________
Manager
Joined: 28 Jul 2011
Posts: 213
Followers: 0

Kudos [?]: 26 [0], given: 13

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  24 Feb 2013, 09:00
Hello Bunuel, Appreciate your help so far. Do you have a similar list consolidated for Weighted Avg problem types?
BSchool Forum Moderator
Joined: 27 Aug 2012
Posts: 1101
Followers: 77

Kudos [?]: 466 [0], given: 102

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  24 Feb 2013, 10:08
Expert's post
debayan222 wrote:
Bunuel wrote:
I think that all these questions were already discussed on the forum, so you could try to search.

Bunuel,
Actually I don't have either of OG Quantitative 2th Edition or OG 11th Edition..So it's bit tough for me to search this individual question..Not only these but also all the questions(from these two books) referred by you/bb in GMAT Club Math book.

So,can you please let me know if there is any particular thread in the forum that contains the link to the discussions of ALL questions from OG Quantitative 2th Edition or OG 11th Edition..?

bb/Bunuel- any information on this guys?

Much appreciate your help.
_________________
Intern
Joined: 27 Feb 2013
Posts: 6
Followers: 0

Kudos [?]: 3 [0], given: 2

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  21 Mar 2013, 12:38
Thanks Bunuel! great job!
Senior Manager
Joined: 16 Dec 2011
Posts: 453
Followers: 9

Kudos [?]: 141 [0], given: 70

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  06 Apr 2013, 05:03
Hi Bunuel, Please tag this forum with quantitative and Problem Solving. This will make the search on your valuable inputs easier.
Manager
Status: Tougher times ...
Joined: 04 Nov 2012
Posts: 53
Location: India
GMAT 1: 480 Q32 V25
WE: General Management (Manufacturing)
Followers: 2

Kudos [?]: 8 [0], given: 44

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  09 May 2013, 01:41
Bunuel wrote:
prashantbacchewar wrote:
Thanks Bunuel.

Is there any document which will explain me Probability and Combinatrics.?

Check Probability and Combinatorics chapters of Math Book:
math-probability-87244.html
math-combinatorics-87345.html

Hope it helps.

Hi banuel,

Is there any documents where concepts and approach methods of inequalities explained ? I am looking for it for a long time but haven't found one.

Regards
kabilan.K
_________________

Kabilan.K
Kudos is a boost to participate actively and contribute more to the forum

Math Expert
Joined: 02 Sep 2009
Posts: 19030
Followers: 3361

Kudos [?]: 24394 [1] , given: 2677

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  09 May 2013, 01:43
1
KUDOS
Expert's post
kabilank87 wrote:
Bunuel wrote:
prashantbacchewar wrote:
Thanks Bunuel.

Is there any document which will explain me Probability and Combinatrics.?

Check Probability and Combinatorics chapters of Math Book:
math-probability-87244.html
math-combinatorics-87345.html

Hope it helps.

Hi banuel,

Is there any documents where concepts and approach methods of inequalities explained ? I am looking for it for a long time but haven't found one.

Regards
kabilan.K

Solving inequalities:
x2-4x-94661.html#p731476
inequalities-trick-91482.html
data-suff-inequalities-109078.html
range-for-variable-x-in-a-given-inequality-109468.html?hilit=extreme#p873535
everything-is-less-than-zero-108884.html?hilit=extreme#p868863
_________________
Math Expert
Joined: 02 Sep 2009
Posts: 19030
Followers: 3361

Kudos [?]: 24394 [0], given: 2677

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  10 Jul 2013, 00:17
Expert's post
Bumping for review*.

*New project from GMAT Club!!! Check HERE

_________________
Director
Joined: 17 Apr 2013
Posts: 510
Schools: HBS '16
GMAT Date: 11-30-2013
GPA: 3.3
Followers: 2

Kudos [?]: 23 [0], given: 238

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  21 Nov 2013, 01:33
Bunuel wrote:
sandeep800 wrote:
thanx for that bunuel!!wish u could have posted answer instead if links!!we need to connect to net evry time we wanaa see a solution..anyways good doc for P& C

Every question has a detailed solution with answers. So that's not true.

All questions have links to the discussions on Gmat Club forum in case of any questions.

Do You have such collection for Modulus Question?
_________________

Like my post Send me a Kudos It is a Good manner.

Math Expert
Joined: 02 Sep 2009
Posts: 19030
Followers: 3361

Kudos [?]: 24394 [0], given: 2677

Re: Hardest Area Questions: "Probability and Combinations" [#permalink]  21 Nov 2013, 02:18
Expert's post
honchos wrote:
Bunuel wrote:
sandeep800 wrote:
thanx for that bunuel!!wish u could have posted answer instead if links!!we need to connect to net evry time we wanaa see a solution..anyways good doc for P& C

Every question has a detailed solution with answers. So that's not true.

All questions have links to the discussions on Gmat Club forum in case of any questions.

Do You have such collection for Modulus Question?

_________________
Re: Hardest Area Questions: "Probability and Combinations"   [#permalink] 21 Nov 2013, 02:18
Similar topics Replies Last post
Similar
Topics:
21 Practice questions of Combinations and probability 6 04 Apr 2013, 03:40
1 Collection of Probability And Combination questions by bkrao 1 11 Oct 2011, 08:43
GMAT Club Hardest Questions: Probability and Combinatorics 1 26 Mar 2011, 06:17
Frequency of Combination/Probability Questions 1 14 Jan 2010, 11:05
21 Combined Probability question 2 25 Nov 2009, 11:42
Display posts from previous: Sort by

# Hardest Area Questions: "Probability and Combinations"

 Question banks Downloads My Bookmarks Reviews Important topics
 Go to page   Previous    1   2   3    Next  [ 41 posts ]

 Powered by phpBB © phpBB Group and phpBB SEO 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®.