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Source: — Data Sufficiency |
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by orel » Mon Nov 24, 2008 6:27 am
Since OC=OB=AB, angles BCO=OBC, and BAO=BOA.

COD=60, but it is not sufficient

OCB=40=OBC ==> COB=100, but insufficient

Taken together, you can find that BAO=20

so, C
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by Tryingmybest » Mon Nov 24, 2008 7:45 am
Feruza Matyakubova Ans is D
Please use the link below for explanation




MAXX I think u aked this question in last 2 weeks
https://www.beatthegmat.com/gmat-prep-ge ... 22957.html
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by orel » Mon Nov 24, 2008 9:32 am
thanks,

shame on me
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