Arbitrageur wrote:

I'm doing reasonably well on regular problems, but i'm getting absolutely destroyed on DS questions. My first

GMAT club test for quant was a 43, followed by a 32! On the latter exam I got nothing but 700+ questions, lot of them algebra DS types, where I had to plug in numbers, test cases, etc. That is my biggest area of weakness. Any advice on how I can get better on DS?

Thanks.

DS questions are really troublesome if fundamentals are not clear. In fact most of the time you can solve a problem of numbers, but in DS you may fail.

Because in DS you're expected to get the solution keeping in mind all possibilities.

For example, in number system related question you need to see that conditions hold for all the defined number ranges.

If the question do not mentioned the number range, then the condition must hold true for -ve, +ve , 0, fractions. Hence, checking all these conditions becomes a bit problematic.

However, positive side is when you see the solution of such question you'll definitely learn some fundamentals, which are the basis of solving such problems. So, rather than keying in random numbers in DS question, try to follow the fundamentals method.

Practice as many DS question as you can, and learn the fundamentals from each wrong answers.

You can practice some of DS questions in the following LINK:

http://questionbank.4gmat.com/mba_prep_sample_questions/data_sufficiency/
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