Tuesday, August 16, 2011

Arithmetic series question - please check if my answer is right, I got 180?

a href="http://answers.yahoo.com/question/index;_ylt=AkyeS_.mUKsPsPTnfj7LiLTsy6IX;_ylv=3?qid=20090418184630AAan0RZ"http://answers.yahoo.com/question/index;…/a

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