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# Data Sufficiency Strategy

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VP
Joined: 22 Oct 2006
Posts: 1447
Schools: Chicago Booth '11
Followers: 7

Kudos [?]: 136 [1] , given: 12

Data Sufficiency Strategy [#permalink]  11 Jan 2008, 08:11
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KUDOS
I have a hard time coming with a good strategy for DS problems, especially number theory questions ex is X > 0 etc etc.

I know the strategies to use -2, -1 , -1/2 , 0 , 1/2 , 1 , 2

however when you have to compare 2 or more variables, even if you can narrow down that list to all positives, still have a lot of combinations to deal with.

I am not good at manipulating all these numbers in my head under time constraints, so I guess I need a good paper strategy to use? I am aware of paper strategies but sometimes they seem too daunting where I would have 4 columns of variables I'd have to check for let's say 4 types of numbers.

How do the pros solve these problems efficiently?
VP
Joined: 22 Oct 2006
Posts: 1447
Schools: Chicago Booth '11
Followers: 7

Kudos [?]: 136 [0], given: 12

Re: Data Sufficiency Strategy [#permalink]  13 Mar 2008, 08:51
anyone have a good method for this? I score well on quant 47-48 but DS is lacking.

Walker or any of the top math gurus, do you have a paper approach to testing variables or do you just do it in your head?
Re: Data Sufficiency Strategy   [#permalink] 13 Mar 2008, 08:51
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# Data Sufficiency Strategy

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