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The area of circle O is 64.

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Carcass
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The area of circle O is 64. [#permalink] New post   02 Nov 2020, 06:25
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The area of circle O is \(64\pi\).

Quantity A
Quantity B
The diameter of circle O
8



A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Source: 320 GRE Math Questions
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Ashgre
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Re: The area of circle O is 64. [#permalink] New post   21 Nov 2020, 00:30
1
Carcass wrote:
The area of circle O is \(64\pi\).

Quantity A
Quantity B
The diameter of circle O
8



A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Source: 320 GRE Math Questions


πr^2 = 64π.

r^2 = 64.

r = 8.

Diameter of a circle is 2r = 2* 8 = 16.

16>8.

Therefore quantity A is the right answer.
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gmatclubot
Re: The area of circle O is 64. [#permalink]
21 Nov 2020, 00:30
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