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GMAT Prep Question Pack 1 - Geometry

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Source: — Data Sufficiency |
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Master | Next Rank: 500 Posts
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by aneesh.kg » Wed Jun 06, 2012 11:46 am
sui generis wrote:OA :C

Please help decipher the figure and solve ? I got it right by intuition.
If all the angles are brought to one point, you will notice that they add up to form one full circle.
Thus
t + s + r = 360

Statement(1) and (2) when combined give us the value of r and s, and thus t can be determined from the equation given above.

[spoiler](C)[/spoiler] is correct.
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by viv09 » Thu Jun 07, 2012 2:52 pm
Think of it as a circle rather than the diagram given.

so as t + s + r = 360.

Knowing only one would not give you the a unique value Hence combining them is necessary.
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