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Inequalities and Data Sufficiency

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Inequalities and Data Sufficiency [#permalink] New post 28 May 2012, 10:54
Hi All,

I am having lot of difficulty in solving data sufficiency problems involving equalities using algebraic manipulations.

I have below questions

1. Are all the Data sufficiency inequality problems that involve only one variable (say x) solvable if we set x to some set of values like 2,1,12,0, -1/2,-1,-2... depending on the constraints of the problem

2. When is it that algebraic manipulations are a must and above method will not work?

Thanks
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Re: Inequalities and Data Sufficiency [#permalink] New post 29 May 2012, 06:58
raviram80 wrote:
Hi All,

I am having lot of difficulty in solving data sufficiency problems involving equalities using algebraic manipulations.

I have below questions

1. Are all the Data sufficiency inequality problems that involve only one variable (say x) solvable if we set x to some set of values like 2,1,12,0, -1/2,-1,-2... depending on the constraints of the problem

2. When is it that algebraic manipulations are a must and above method will not work?

Thanks


Hi raviram80.

You cannot classify problems like this. I would advise you to strengthen your concepts.

Follow this link from forum threads. It's great.

inequalities-on-gmat-ds-126157.html

If you have specific queries do post.

Regards,

Shouvik.
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Re: Inequalities and Data Sufficiency [#permalink] New post 11 Jun 2012, 10:26
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raviram80 wrote:
Hi All,

I am having lot of difficulty in solving data sufficiency problems involving equalities using algebraic manipulations.

I have below questions

1. Are all the Data sufficiency inequality problems that involve only one variable (say x) solvable if we set x to some set of values like 2,1,12,0, -1/2,-1,-2... depending on the constraints of the problem

2. When is it that algebraic manipulations are a must and above method will not work?

Thanks


Dear raviram80

It does sound like you need to strength you understanding of concepts, especially algebra. I recommend posting specific questions in this forum and learning from the expert answers.

Here's a free lesson video you may find helpful about picking numbers on DS:
http://gmat.magoosh.com/lessons/368-choosing-numbers

I hope that helps. Let me know if you have any further questions.

Mike :)
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Mike McGarry
Magoosh Test Prep

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Re: Inequalities and Data Sufficiency   [#permalink] 11 Jun 2012, 10:26
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