Q's on prob/perm & comb not available in OG 12th edition

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sridhar95_04: Junior | Next Rank: 30 Posts; Posts: 22; Joined: Thu Oct 13, 2011 6:39 am

by sridhar95_04 » Sun Nov 06, 2011 8:07 am

Hello All,

This is the first time I am writing in this forum.

I have been working out the problems in OG 12th edition in both, Problem solving (total 230 q's) and DS (totally 174 q's) and I have nearly completed all of them. However, I noticed that there are no questions on probability and Permutations/Combinations in the entire OG 12th edition.

Also, in the Math review which gives the explanation of concepts does not include probability and perm/combinations.

Does this mean that these portions will not appear in the actual GMAT? I would also like to know if they have mentioned anywhere whether probability & perm/comb is available in the syllabus for GMAT.

Kindly let me know if the portions are available anywhere.

Thanks a lot,

Sridhar

Source: Beat The GMAT — GMAT Strategy | Sun Nov 06, 2011 8:07 am

vaibhavgupta: Master | Next Rank: 500 Posts; Posts: 416; Joined: Tue Aug 30, 2011 2:18 pmFollowed by: 9 members; Location: Delhi, India; Thanked: 13 times

by vaibhavgupta » Sun Nov 06, 2011 11:20 am

sridhar95_04 wrote:Hello All,

This is the first time I am writing in this forum.

I have been working out the problems in OG 12th edition in both, Problem solving (total 230 q's) and DS (totally 174 q's) and I have nearly completed all of them. However, I noticed that there are no questions on probability and Permutations/Combinations in the entire OG 12th edition.

Also, in the Math review which gives the explanation of concepts does not include probability and perm/combinations.

Does this mean that these portions will not appear in the actual GMAT? I would also like to know if they have mentioned anywhere whether probability & perm/comb is available in the syllabus for GMAT.

Kindly let me know if the portions are available anywhere.

Thanks a lot,

Sridhar

No, they are tested in GMAT. check questions on the Maths forum!

If OA is A, IMO B
If OA is B, IMO C
If OA is C, IMO D
If OA is D, IMO E
If OA is E, IMO A

FML!! :/

VivianKerr: GMAT Instructor; Posts: 1035; Joined: Fri Dec 17, 2010 11:13 amFollowed by: 365 members; Location: Los Angeles, CA; Thanked: 474 times

by VivianKerr » Sun Nov 06, 2011 9:55 pm

If only these concepts were omitted.

While not heavily tested, these concepts will appear. Try this links to get started:

https://www.platinumgmat.com/gmat_study_ ... robability

https://www.beatthegmat.com/mba/category ... mbinations

https://grockit.com/blog/gmat/2010/09/22 ... -counting/

https://gmatclub.com/forum/math-combinatorics-87345.html

Vivian Kerr
GMAT Rockstar, Tutor
https://www.GMATrockstar.com
https://www.yelp.com/biz/gmat-rockstar-los-angeles

Former Kaplan and Grockit instructor, freelance GMAT content creator, now offering affordable, effective, Skype-tutoring for the GMAT at $150/hr. Contact: [email protected]

Thank you for all the "thanks" and "follows"!

sridhar95_04: Junior | Next Rank: 30 Posts; Posts: 22; Joined: Thu Oct 13, 2011 6:39 am

by sridhar95_04 » Tue Nov 08, 2011 10:12 am

Thanks Vaibhav and Vivian,

It does look like questions on probability, permutations & combinations do appear regularly on the gmat. However, only a fundamental testing of the concepts is done and not very difficult problems appear.

Thanks,
Sridhar

David@VeritasPrep: GMAT Instructor; Posts: 2193; Joined: Mon Feb 22, 2010 6:30 pmFollowed by: 512 members; Location: Vermont and Boston, MA; Thanked: 1186 times; GMAT Score:770

by David@VeritasPrep » Sun Nov 13, 2011 4:25 pm

I have taken the test a couple of times over the past 18 months and have seen an interesting trend of permutations combined with probability. A simple probability question, involving just one event, but the only way to find the probability is to work through a permutation or combination. So these questions are out there.

If you are interested in probability, combinations, or permutations Veritas has a book devoted to these topics that has been well received. The following is the link to the reviews on Amazon. https://www.amazon.com/Combinatorics-Pro ... Descending

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