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# I'm officially TERRIBLE at combination/permutation,

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Current Student
Joined: 03 Oct 2006
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I'm officially TERRIBLE at combination/permutation, [#permalink]  22 Jun 2007, 09:28
I'm officially TERRIBLE at combination/permutation, proportion and ratio problems.

Can you guys provide me with somelinks to sites that cover these types of problems? I've already done the problems outlined in the Manahattan GMAT strat guides, but need more focused studying in this area.

Any help is appreciated, thanks!
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VP
Joined: 08 Jun 2005
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a non-GMAT one (excellent !!)

http://www.themathpage.com/aPreCalc/per ... ations.htm

and I don't know if you saw the following links:

http://www.gmatclub.com/content/courses ... ations.php
http://www.gmatclub.com/content/courses ... bility.php

Current Student
Joined: 03 Oct 2006
Posts: 85
Followers: 1

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

Thanks! I love this site. Helping with some of the posted problems on this forum and seeing the posted solutions has become VERY helpful.
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