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555-605 (Medium)|   Geometry|      
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Bunuel
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If circles A and B are concentric, what is the ratio of the area of th 02 Sep 2018, 22:09
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B
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25% (medium)

Question Stats:

71% (01:18) correct 29% (01:19) wrong based on 77 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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B
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
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sumit411
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If circles A and B are concentric, what is the ratio of the area of th 02 Sep 2018, 22:47
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Bunuel
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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Imho, answer is B
Attachment:
IMG_20180903_111843.jpg
IMG_20180903_111843.jpg [ 64.72 KiB | Viewed 1602 times ]

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If circles A and B are concentric, what is the ratio of the area of th 10 Nov 2018, 10:37
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sumit411
Bunuel
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.
Imho, answer is B
Attachment:
IMG_20180903_111843.jpg

Thank you = Kudos
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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
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Bunuel
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