1
x+y = z
x = z-y
if x is positive,
|x| = z-y
if x is negative,
|x| = y-z
Insufficient
2.
x<0
Insufficient
Combining
|x| =y-z
Option C
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Source: Beat The GMAT — Data Sufficiency |
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neelgandham
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is |x| = y-z
(1) x+y = z
=> x = z-y
=> |x| = z-y, if x >0 ; |x| = y-z, if x<0 Insufficient
(2) x<0 Insufficient
(1)+(2)- |x| = y-z, if x<0 Sufficient
IMO: C
(1) x+y = z
=> x = z-y
=> |x| = z-y, if x >0 ; |x| = y-z, if x<0 Insufficient
(2) x<0 Insufficient
(1)+(2)- |x| = y-z, if x<0 Sufficient
IMO: C
Anil Gandham
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Welcome to BEATtheGMAT | Photography | Getting Started | BTG Community rules | MBA Watch
Check out GMAT Prep Now's online course at https://www.gmatprepnow.com/
