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Difficulty:
65%
(hard)
Question Stats:
46% (02:06) correct
54%
(01:52)
wrong
based on 48
sessions
History
Date
Time
Result
Not Attempted Yet
Is AD > BC?
(1) CD = AB
(2) Angle CAB = Angle BCA
Attachment:
1.png [ 15.49 KiB | Viewed 1532 times ]
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
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(1) CD = AB
\(\Delta\)'s ADC and CBA become similar after using statement 1.
Attachment:
Similar triangles.png [ 2.81 KiB | Viewed 1255 times ]
If the lengths of the hypotenuse and a leg of a right triangle are proportional to the corresponding parts of another right triangle, then the triangles are similar.
Hece AD = BC
Hence we can answer a definite NO to the stem. SUFF.
(2) Angle CAB = Angle BCA
This info. does not help us to establish similarity or help us in any other way to acertain whether AD > BC
INSUFF.
Ans A
Hope it's clear.
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