coordinate geometry

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Source: — Data Sufficiency |

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by liferocks » Mon Apr 19, 2010 8:21 pm
we can rephrase the question as ,is s=3r+2?

Statement 1 ---
either s=3r+2 or s=4r+9--->insufficient

Statement 2 ---
either s=3r+2 or s=4r-6--->insufficient

together s=3r+2 --sufficient

Ans C
please confirm.

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by nisha.menon294 » Mon Apr 19, 2010 8:25 pm
Yes OA is c