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Problems with Data Interpretation and Data Sufficiency

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Problems with Data Interpretation and Data Sufficiency [#permalink] New post 26 Jul 2012, 00:54
Hey Everyone. I am having trouble with Data Solving and Data Sufficiency problem.
1. I take too much time.
2. Accuracy rate is low.

Please suggest some measures so I can work on it

Regards
Vadehra
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Re: Problems with Data Interpretation and Data Sufficiency [#permalink] New post 26 Jul 2012, 05:46
DS questions are mostly to find a value or yes/no type. Be clear with what is being asked, if its find a value then we should get only one particular value there cannot be more than one, if its yes/no - it should be either one and not both. You shouldn't start solving the problem with all the information in the question and the statements. Try rephrasing the question first. It is more important to know what is asked and what is needed to solve. Be clear with what you are supposed to find, write it down on the scratch pad. Go through the statements one by one and rephrase them as well then try to solve. Follow the A D, B C E order. While solving problems make flash cards for shortcuts like if x^2 < x then 0 < x < 1. For percentage increase/decrease you need both the original and the increased value. Is x < y - we need to know the signs of both variables. For absolute value problems you have to split up the eqns. So the statements should have something related to this. You will learn a lot of these shortcuts when you review a lot. So try to follow the AD BCE approach and review a lot to learn more shortcuts. If you have MGMAT strategy guides, check the strategy for DS it will be enough to get a basic understanding of how to approach DS problems. Hope this helps !!
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Re: Problems with Data Interpretation and Data Sufficiency [#permalink] New post 26 Jul 2012, 05:50
The problems you describe are very common for DS, that's why DS problems are set up that way :)

First, are you brushed up on general math skills? Good quant problem solving skills are necessary to be able to look at a problem and know/figure out what the first step is.

Second, have you read the strategy on DS (see strategy link in my sig and also this gmat-math-book-87417.html)? When you're dealing with DS problems that are roughly ~650 level score and below, you can use the DS strategy fairly effectively. Once you get into more difficult problems, it becomes less useful.
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Re: Problems with Data Interpretation and Data Sufficiency   [#permalink] 26 Jul 2012, 05:50
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