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Advanced Topic: Probability and Combinations Questions With Solutions

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Senior Manager
Status: Verbal Forum Moderator
Joined: 17 Apr 2013
Posts: 480
Location: India
GMAT 1: 710 Q50 V36
GMAT 2: 750 Q51 V41
GMAT 3: 790 Q51 V49
GPA: 3.3

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21 Nov 2013, 04:19
Bunuel,

Any where on the Forum in organized manner, as far as I remember I Saw them somewhere 2 months ago, I serached them could not find, Not even in your signature. My exam is on dec 10 2013.

I am try to be as much focussed as I can.
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Like my post Send me a Kudos It is a Good manner.
My Debrief: http://gmatclub.com/forum/how-to-score-750-and-750-i-moved-from-710-to-189016.html

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Joined: 01 Sep 2016
Posts: 56

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13 Sep 2016, 12:09
1
Super Thanks for this

Bunuel wrote:

Advanced Topic: Probability and Combinations Questions With Solutions.

Collected by Bunuel
Solutions by Bunuel
From http://gmatclub.com

These are hand-picked Probability and Combinations Questions from the GMAT Club forum.

All questions have detailed solutions (mine) with various tips and tricks.
All questions have links to the discussions on GMAT Club forum in case of any questions.

Source of the questions:
GMAT Club;
GMAT Prep;
MGMAT;
GMAT forums;
etc.

Attachment:
Probability and Combinations.doc

Theory on Combinations: math-combinatorics-87345.html

DS questions on Combinations: search.php?search_id=tag&tag_id=31
PS questions on Combinations: search.php?search_id=tag&tag_id=52

Theory on probability problems: math-probability-87244.html

All DS probability problems to practice: search.php?search_id=tag&tag_id=33
All PS probability problems to practice: search.php?search_id=tag&tag_id=54

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
Manager
Joined: 18 Jun 2016
Posts: 93
Location: India
Concentration: Technology, Entrepreneurship
GMAT 1: 700 Q49 V36

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04 Oct 2016, 06:05
Great document!

Is there similar document for Geometry, Inequalities and word problems.
Type of questions that can help to take score from 47-48 to 50-51
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Joined: 19 Oct 2016
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03 Mar 2017, 19:52
Really appreciate again!
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Joined: 15 Nov 2017
Posts: 115
Location: India
Concentration: Operations, Marketing
GPA: 4
WE: Operations (Retail)

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08 Mar 2018, 09:36
7 people (A, B, C, D, E, F and G) go to a movie and sit next to each other in 7 adjacent seats in the front row of the theatre. A will not sit to the left of F and F will not sit to the left of E. How many different arrangements are possible?
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08 Mar 2018, 09:43
aggvipul wrote:
7 people (A, B, C, D, E, F and G) go to a movie and sit next to each other in 7 adjacent seats in the front row of the theatre. A will not sit to the left of F and F will not sit to the left of E. How many different arrangements are possible?

Discussed here: https://gmatclub.com/forum/7-people-a-b ... 80985.html

P.S. Please follow the rules when posting a question: https://gmatclub.com/forum/rules-for-po ... 33935.html
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27 Oct 2018, 07:50
Hi Bunuel

I finished solving your set of questions. I am aware that, especially in combination and probability questions, many possible solutions exist. However, I noticed that you solved almost all probability theory questions using combinations (#favourable outcomes/#possible outcomes) and not probability theory. Could you explain me why you always approach these questions with combinations?

Having said that I want to thank you for this set of questions. It was very helpful!
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Joined: 20 Jun 2018
Posts: 73
Location: India

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27 Oct 2018, 18:39
Hey Bunuel is there a similiar post for Geometry and Co-ordinate Geometry? Thanks.
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Joined: 02 Sep 2009
Posts: 52296

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28 Oct 2018, 00:18
Shbm wrote:
Hey Bunuel is there a similiar post for Geometry and Co-ordinate Geometry? Thanks.

Check the topics below:

1. ALL YOU NEED FOR QUANT ! ! !

Hope it helps.
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Re: Advanced Topic: Probability and Combinations Questions With Solutions &nbs [#permalink] 28 Oct 2018, 00:18

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