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# Not Getting Better at Rate/Probability/Combinatorics Qs

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Intern
Joined: 11 Oct 2012
Posts: 47
Followers: 0

Kudos [?]: 15 [0], given: 9

Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink]

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08 Nov 2012, 10:17
Hi all,

I'm really struggling at doing well on the aforementioned categories in the math section. The rest of the stuff is fairly straightforward, but I can't understand how to do these categories once it gets to even medium level questions. I've tried looking at the stickies here, but I still can't do the practice problems (again, anything past the easy examples are too tough for me) and I've also tried using the Manhattan guides, but I'm not getting any better (the RTD chart I found was more helpful than the strategy discussed here). Does anyone have any suggestions on what to do? This is really worrying me, so any help would be great!
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Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 7252
Location: Pune, India
Followers: 2205

Kudos [?]: 14355 [0], given: 222

Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink]

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09 Nov 2012, 23:35
brooksbrahs wrote:
Hi all,

I'm really struggling at doing well on the aforementioned categories in the math section. The rest of the stuff is fairly straightforward, but I can't understand how to do these categories once it gets to even medium level questions. I've tried looking at the stickies here, but I still can't do the practice problems (again, anything past the easy examples are too tough for me) and I've also tried using the Manhattan guides, but I'm not getting any better (the RTD chart I found was more helpful than the strategy discussed here). Does anyone have any suggestions on what to do? This is really worrying me, so any help would be great!

I have discussed a work rate strategy here:
http://www.veritasprep.com/blog/2011/03 ... -problems/

See if it works for you.

Also, I have discussed lots of combinatorics concepts in my blog starting with this post: http://www.veritasprep.com/blog/2011/10 ... inatorics/
(many subsequent posts are on combinatorics)
After a couple of posts, they get a little tricky.
_________________

Karishma
Veritas Prep | GMAT Instructor
My Blog

Get started with Veritas Prep GMAT On Demand for $199 Veritas Prep Reviews Manager Joined: 21 Sep 2012 Posts: 237 Followers: 1 Kudos [?]: 345 [0], given: 63 Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] ### Show Tags 10 Nov 2012, 01:04 I'm not sure if your facing the problem I had. Initially I found it challenging to convert the word problems to math but I improved over time. If you face the same problem I would advice you to work on wordy problems and also have a look at the following link. For probability the OR (adding) and AND(multiplying) part is quite important so that makes life easier. word-problems-made-easy-87346.html Also there are free video explanations of OG mentioned here: http://www.gmatquantum.com/ hope that helps! Director Status: Gonna rock this time!!! Joined: 22 Jul 2012 Posts: 542 Location: India GMAT 1: 640 Q43 V34 GMAT 2: 630 Q47 V29 WE: Information Technology (Computer Software) Followers: 3 Kudos [?]: 61 [0], given: 562 Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] ### Show Tags 14 Nov 2012, 03:06 how many questions can we expect from Probability on GMAT? This is one area that I am finding it difficult to master. _________________ hope is a good thing, maybe the best of things. And no good thing ever dies. Who says you need a 700 ?Check this out : http://gmatclub.com/forum/who-says-you-need-a-149706.html#p1201595 My GMAT Journey : http://gmatclub.com/forum/end-of-my-gmat-journey-149328.html#p1197992 Veritas Prep GMAT Instructor Joined: 16 Oct 2010 Posts: 7252 Location: Pune, India Followers: 2205 Kudos [?]: 14355 [1] , given: 222 Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] ### Show Tags 14 Nov 2012, 06:11 1 This post received KUDOS Expert's post Sachin9 wrote: how many questions can we expect from Probability on GMAT? This is one area that I am finding it difficult to master. Normally, not more than 2. _________________ Karishma Veritas Prep | GMAT Instructor My Blog Get started with Veritas Prep GMAT On Demand for$199

Veritas Prep Reviews

Director
Status: Gonna rock this time!!!
Joined: 22 Jul 2012
Posts: 542
Location: India
GMAT 1: 640 Q43 V34
GMAT 2: 630 Q47 V29
WE: Information Technology (Computer Software)
Followers: 3

Kudos [?]: 61 [0], given: 562

Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink]

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14 Nov 2012, 07:02
VeritasPrepKarishma wrote:
Sachin9 wrote:
how many questions can we expect from Probability on GMAT?

This is one area that I am finding it difficult to master.

Normally, not more than 2.

including Combinatorics, I guess the number would be 3.. right?
_________________

hope is a good thing, maybe the best of things. And no good thing ever dies.

Who says you need a 700 ?Check this out : http://gmatclub.com/forum/who-says-you-need-a-149706.html#p1201595

My GMAT Journey : http://gmatclub.com/forum/end-of-my-gmat-journey-149328.html#p1197992

Re: Not Getting Better at Rate/Probability/Combinatorics Qs   [#permalink] 14 Nov 2012, 07:02
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