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23 Jun 2013, 02:59
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
83% (01:05) correct
17%
(01:06)
wrong
based on 131
sessions
History
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Not Attempted Yet
Attachment:
diagram.png [ 8.07 KiB | Viewed 2750 times ]
(1) FE = EG = 6.
(2) <FEG is 75˚.
Please provide detailed explanation!
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
Data Sufficiency Forum
23 Jun 2013, 03:55
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fozzzy
Hi
IMO C
perimeter = (angle FEG/360)*Perimeter of circle of radius R + LENGTH OF EF + LENGTH OF EG
Here R= EF =EG
So we need to know 2 unknown things to find out the perimeter
1==>angle subtended at centre
2==>length of radius
statement 1.==> only radius given ...therefore NOT SUFFICIENT
statement 2 ==> only angle is given hence NOT SUFFICIENT .
combining two we can get the answer
HENCE C
KUDOS if it helped
evdo
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24 Apr 2014, 08:47
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blueseas
Shouldn't the perimeter be = Perimeter of circle of radius R - (angle FEG/360)*Perimeter of circle of radius R + LENGTH OF EF + LENGTH OF EG ?
It leads to the same answer though...
