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General DS Question

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Intern
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Joined: 03 Sep 2018
Posts: 1
General DS Question  [#permalink]

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New post 03 Sep 2018, 14:41
Hello everyone,

How do you know when to test cases when confronted with a DS question?

Thanks!
Andi
EMPOWERgmat Instructor
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Status: GMAT Assassin/Co-Founder
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Joined: 19 Dec 2014
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Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: Q170 V170
Re: General DS Question  [#permalink]

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New post 03 Sep 2018, 14:50
Hi Andi,

You ask a rather broad question, since most GMAT prompts are designed so that they can be solved in more than one way. On a fundamental level though, the prompt of a DS question never gives you enough information to answer the question that is asked. There is always something 'missing' - and it's up to you to determine whether the additional information provided in Fact 1 and/or Fact 2 is enough to definitively answer that question. A great way to track results - so that you can define whether the result stays the same or changes - is to TEST VALUES (so you would likely find that a useful Tactic on most DS questions). That having been said, sometimes DS questions are really just about specific math knowledge or pattern matching, so there will be prompts that just come down to solving an equation.

Before I can offer you any additional advice, it would help if you could provide a bit more information on how you've been studying and your goals:

Studies:
1) How long have you studied?
2) What study materials have you used so far?
3) How have you scored on EACH of your CATs (including the Quant and Verbal Scaled Scores for EACH)?

Goals:
4) What is your goal score?
5) When are you planning to take the GMAT?
6) When are you planning to apply to Business School?
7) What Schools are you planning to apply to?

GMAT assassins aren't born, they're made,
Rich
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Rich Cohen

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Re: General DS Question &nbs [#permalink] 03 Sep 2018, 14:50
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