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Not Getting Better at Rate/Probability/Combinatorics Qs

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Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] New post 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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Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] New post 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.
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Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] New post 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!
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Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] New post 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.
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Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] New post 14 Nov 2012, 06:11
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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.
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Re: Not Getting Better at Rate/Probability/Combinatorics Qs [#permalink] New post 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?
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Who says you need a 700 ?Check this out : http://gmatclub.com/forum/who-says-you-need-a-149706.html#p1201595

My GMAT Journey : end-of-my-gmat-journey-149328.html#p1198742

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