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15 Oct 2019, 02:33
Kudos
Bookmarks
D
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Difficulty:
15%
(low)
Question Stats:
79% (00:40) correct
21%
(00:36)
wrong
based on 37
sessions
History
Date
Time
Result
Not Attempted Yet
In the triangle above, what is the value of b?
(1) \(c = 2\sqrt{2}\)
(2) x = 45
Attachment:
20120524134854238_4248.jpg [ 2.11 KiB | Viewed 2087 times ]
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
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15 Oct 2019, 02:40
Kudos
Bookmarks
Bunuel
(1) \(c = 2\sqrt{2}\)
We have c^2 = 2^2 + b^2
--> b^2 = (2\(\sqrt{2}\))^2 - 4 = 8 - 4 = 4
--> b = 2 --> Sufficient
(2) x = 45
--> The triangle is an isosceles right angled triangle with ratio of the sides 1: 1: \(\sqrt{2}\)
--> b = 2 --> Sufficient
IMO Option D
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