I would go with C
Stmt I
e+d = -12
d can be positve or negative
INSUFF
Stmt II
e-d < -12
e < d-12
d again can be positive or negative
INSUFF
Together:
e+d=-12
d = -12-e
e-d<-12
e- (-12-e)<-12
e+12+e<-12
2e < -24
e < -12
d has to be positive if e+d = -12
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d<0
Source: Beat The GMAT — Data Sufficiency |
A does not give any info about d
B does not give any info about d
combining both give a value of d, which is reducing a value of e such that it is becoming less than -12 as per eqn 1. So d is positive number
Ans C
B does not give any info about d
combining both give a value of d, which is reducing a value of e such that it is becoming less than -12 as per eqn 1. So d is positive number
Ans C
