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# If circles A and B are concentric, what is the ratio of the area of th

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Math Expert
Joined: 02 Sep 2009
Posts: 52917
If circles A and B are concentric, what is the ratio of the area of th  [#permalink]

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02 Sep 2018, 21:09
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Difficulty:

35% (medium)

Question Stats:

73% (01:13) correct 28% (01:27) wrong based on 48 sessions

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If circles A and B are concentric, what is the ratio of the area of the inner circle A to the outer circle B?

(1) The straight line distance between the two circles is 3.
(2) The ratio of the circumferences of the circles 2/5.

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Joined: 07 Oct 2017
Posts: 258
Re: If circles A and B are concentric, what is the ratio of the area of th  [#permalink]

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02 Sep 2018, 21:47
Bunuel wrote:
If circles A and B are concentric, what is the ratio of the area of the inner circle A to the outer circle B?

(1) The straight line distance between the two circles is 3.
(2) The ratio of the circumferences of the circles 2/5.
Attachment:

IMG_20180903_111843.jpg [ 64.72 KiB | Viewed 413 times ]

Thank you = Kudos
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Thank you =Kudos
The best thing in life lies on the other side of the pain.

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Joined: 01 Feb 2018
Posts: 75
Location: India
Concentration: Entrepreneurship, Marketing
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Re: If circles A and B are concentric, what is the ratio of the area of th  [#permalink]

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10 Nov 2018, 09:37
sumit411 wrote:
Bunuel wrote:
If circles A and B are concentric, what is the ratio of the area of the inner circle A to the outer circle B?

(1) The straight line distance between the two circles is 3.
(2) The ratio of the circumferences of the circles 2/5.
Attachment:
IMG_20180903_111843.jpg

Thank you = Kudos

Though ur answer is correct.. But seems like u misread.. U solved for circumference but question asked for area.

It's important we don't such mistakes.

Posted from my mobile device
Re: If circles A and B are concentric, what is the ratio of the area of th   [#permalink] 10 Nov 2018, 09:37
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# If circles A and B are concentric, what is the ratio of the area of th

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