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Re: The figure above shows three circles, all centered on point O. What is [#permalink]
Innermost circle --> r = 1 --> A = pi

Outermost --> r= 3 --> A = 9 pi

Ratio = 9:1
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Re: The figure above shows three circles, all centered on point O. What is [#permalink]
PareshGmat wrote:
The figure above shows three circles, all centered on point O. What is the ratio of the area of the outermost circle to that of the innermost circle?

Attachment:
new.png


A. √3 : 1
B. 2 : 1
C. 3 : 1
D. π : 1
E. 9 : 1


Ratio of radii = 3:1
Ratio of areas = 9:1

IMO E

Posted from my mobile device
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Re: The figure above shows three circles, all centered on point O. What is [#permalink]
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