Question
The circles are not drawn to scale. The small circle is with radius n and the big circle is with radius N. The ratio of n to N is 5 : 8. If the area of the small circle is 256π m2, find N. Express your answer in mixed number.
2 m

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The circles are not drawn to scale. The small circle is with radius n and the big circle is with radius N. The ratio of n to N is 5 : 8. If the area of the small circle is 256π m2, find N. Express your answer in mixed number.