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Data sufficiency "Percent and Ratio" Tip

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Data sufficiency "Percent and Ratio" Tip [#permalink]

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10 Mar 2011, 00:32
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I found this tip extremely useful for me so I'm posting it here for others as well.

In DS problems, all you need to have in order to compute a percent change is the RATIO of change to original.
Remember, Original + Change = New

Hope this helps you all...
Data sufficiency "Percent and Ratio" Tip   [#permalink] 10 Mar 2011, 00:32
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