Try this

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Source: — Data Sufficiency |

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by papgust » Thu Mar 18, 2010 12:37 am

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by Stuart@KaplanGMAT » Thu Mar 18, 2010 1:15 pm
papgust wrote:Hope you read my previous post!

https://www.beatthegmat.com/ds-question-t1514.html
Here's another one!

https://www.beatthegmat.com/laymans-term ... t9968.html

This question has been posted quite a few times.
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