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Difficulty:
95%
(hard)
Question Stats:
31% (02:05) correct
69%
(01:59)
wrong
based on 100
sessions
History
Date
Time
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Not Attempted Yet
In the figure above, if AC = BD, is AD parallel to BC?
(1) Angle AED = 90 deg
(2) DE = EB
Attachment:
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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
gmatbusters
In such questions, try to find if any given info can give you a CONSTANT figure..
If yes, then you can calculate all corresponding values..
If not, the statement is not sufficient..
1) angle AED=90...
I can move AC with C coming closer to point of intersection, so the figure can be changed..
Insufficient
2) DE=EB...
Above point of moving AC is still possible..
Insufficient..
Combined..
The line AC can stretch on any side changing the figure and thus insufficient...
E
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