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# how many probability/combinatorics problems

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Manager
Joined: 27 Jan 2011
Posts: 198

Kudos [?]: 13 [0], given: 6

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13 May 2011, 17:05
I have identified my major problem areas in quant and realize that my strike rate for probability and combinatorics problems is zero Can any of the people done with the actual GMAT test tell the number of these types of problems they had to in the Quant section...I am trying my best to get a hold on this subject, but also want to make a rational judgement if i want to spend too much time on this topic..

Kudos [?]: 13 [0], given: 6

Intern
Joined: 08 May 2011
Posts: 5

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

Re: how many probability/combinatorics problems [#permalink]

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13 May 2011, 17:48
Probability and combinatorics will show up on your GMAT. How important they are is relative and up to you. Are you trying to get a 650+? You greatly limit your chances by ignoring any part of the limited range of math the GMAT asks you to learn. Why not spend the time to learn them?

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

Senior Manager
Joined: 20 Jun 2010
Posts: 488

Kudos [?]: 79 [0], given: 27

Concentration: Strategy, Economics
Schools: Chicago (Booth) - Class of 2014
Re: how many probability/combinatorics problems [#permalink]

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13 May 2011, 18:16
I worried about these problems way too much when studying for the GMAT.

I got a 43 in quant and remember getting 1 very simple combinatorics question (something like how many sandwiches can you make with 4 different ingredients)

Then I took the GMAT again and got a 47 in quant. I remember getting one simple probability question and one difficult combinatorics problem (something about arranging uppercase and lowercase letters)

But really, if you see a combinatorics/probability question on the test it's a sign that your doing well. And in my personal opinion, it's unlikely that you'll see more than 1-2 of these on the test, unless maybe you are doing outstanding.

My advice is to worry about more fundamental stuff on the exam. The first time I took the GMAT I was a combinatorics/permutation/probability expert. However, I think that this expertise came at the expense of doing poorly on some fundamental items. Unless you have a superb grasp of the fundamentals, your probably not going to get any difficult C/P/P problems anyways. So don't waste too much time on this.
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Kudos [?]: 79 [0], given: 27

SVP
Affiliations: HEC
Joined: 28 Sep 2009
Posts: 1635

Kudos [?]: 684 [0], given: 432

Concentration: Economics, Finance
GMAT 1: 730 Q48 V44
Re: how many probability/combinatorics problems [#permalink]

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14 May 2011, 04:36
I had at least two of these questions on the GMAT. While they are relatively rare, it's still important to learn how to answer combinatorics and probability problems. But as others have stated, just don't spend too much time preparing for them.
_________________

Kudos [?]: 684 [0], given: 432

Senior Manager
Status: 750+ or Burst !
Joined: 01 May 2011
Posts: 385

Kudos [?]: 132 [1], given: 26

Location: India
Concentration: General Management, Strategy
GMAT 1: 670 Q48 V35
GPA: 3.5
Re: how many probability/combinatorics problems [#permalink]

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15 May 2011, 03:21
1
KUDOS
There is no way you can know how many questions might appear from Combinatorics. I too face a lot of problems in them. But I am improving.

You too can improve - understand the fundamentals of both of them and use a lot of logic and understanding - donot use formulas unnecessarily.

And do not skip any chapter under any circumstance. Prepare for the worst.
_________________

GMAT done - a mediocre score but I still have a lot of grit in me

The last 20 days of my GMAT journey

Kudos [?]: 132 [1], given: 26

Re: how many probability/combinatorics problems   [#permalink] 15 May 2011, 03:21
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# how many probability/combinatorics problems

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