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What is the best strategy to approach DS questions? As many

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What is the best strategy to approach DS questions? As many [#permalink] New post 11 Jun 2008, 05:40
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What is the best strategy to approach DS questions? As many have gone through it, the question itself looks simple to solve but more & more I get in to it I seem to get more incorrect answers.

Any good reference to study basics here other than math basics.
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Re: Best strategy to approach DS [#permalink] New post 11 Jun 2008, 05:53
Of course you have to take the statements separately. This is easier said than done. In practice, I've actually held up a piece of paper over the computer screen to cover the statement I'm not working on.

It would also help for you to create an error log so you can figure out what specifically about DS questions trip you up.

Is it that you're answer B, that the 2nd choice is sufficient but using information from statement 1 to make it sufficient so the correct answer is C?

Are you answering that one is sufficient while the other is not, but then there are cases that make the answer not true. Somtimes the question might have variables x & y. We grab 2 numbers to see if those numbers work for an equation in the stem and the equation given in a statement. If those numbers work, we have to keep trying to find numbers that do not work so we can say with certainty that #1 is or is not sufficient.

The structure of DS is a difficult way to approach a math problem because you're not actually answering a math problem. You're using math to answer a completely different question. The qusetion is testing your ability to recognize what information is necessary to solve a problem and then filter out the information given to you and seeing if you have enough. They may use math to figure it out, but it's problem solving and analysis with math as the means rather than the end.
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Re: Best strategy to approach DS [#permalink] New post 11 Jun 2008, 13:44
DS problems come in very different flavours, but one thing applies to them all. Try to reduce the question into very very simple terms even before you start looking at the data. Then look at the data and before you put pen to paper, try to think of it logically. Often you will find that some statements will obviously won't be sufficient.

eg a very simple question could be

is x^2 > y

1) y = 5

2) x=3-y

you can see is 1) by itself is insufficient because no data for x is given.
Re: Best strategy to approach DS   [#permalink] 11 Jun 2008, 13:44
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