Four concentric circles are given .The radius of 1st circle is x.next is 2x,then

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Four concentric circles are given .The radius of 1st circle is x.next is 2x,then 3x and 4x. Given that area between 2nd and 1st is A and 4th and 3rd circles being B. Find ratio of A to B

A. 0.129861111
B. 0.29375
C. 0.128472222
D. None of these

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