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23 Nov 2016, 03:05
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E
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:
84% (01:32) correct
16%
(01:09)
wrong
based on 86
sessions
History
Date
Time
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Not Attempted Yet
Vinayak Shenoy
Joined: 06 Jun 2016
Last visit: 27 Jun 2017
Posts: 233
Own Kudos:
Given Kudos: 212
Location: India
Concentration: Operations, Strategy
Schools: ISB '18 (D)
GMAT 1: 600 Q49 V23
GMAT 2: 680 Q49 V34
GPA: 3.9
23 Nov 2016, 03:18
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Bunuel
What is the value of x + y ?
(1) xy+ wz + xz+ wy= 8
(2) y + z = 4
(1) xy+ wz + xz+ wy= 8
(2) y + z = 4
IMO E
From statement 1
xy + wz + xz + wy = 8
x(y+z) + w(y+z) = 8
(x+w) (y+z) =8
Insufficient
From statement 2
y+z=4
Insufficient
Combining
(x+w)*4=8
(x+w)=2
Insufficient
Hence E
23 Nov 2016, 19:26
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Bunuel
What is the value of x + y ?
(1) xy+ wz + xz+ wy= 8
(2) y + z = 4
(1) xy+ wz + xz+ wy= 8
(2) y + z = 4
(1) x(y+z)+w(y+z)=8
(x+w)(y+z)=8
not suff..
(2) clearly insuff..
Combining
(x+w)=2
insuff
Ans E
