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11 Nov 2022, 07:54
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
87% (00:50) correct
13%
(00:49)
wrong
based on 23
sessions
History
Date
Time
Result
Not Attempted Yet
11 Nov 2022, 08:18
Kudos
Bookmarks
Statement I: z^2=49
Z can be 7 or -7.
Statement I alone is not sufficient.
Reject A and D
Statement II: z<1/z
This applies when z <0.
e.g. -7<-1/7
But we cannot certainly derive value of z from statement II.
Statement II alone is not sufficient.
Combining statement I and statement II
z is <0 and z can be -7.
Z is -7.
C is the answer
Posted from my mobile device
Z can be 7 or -7.
Statement I alone is not sufficient.
Reject A and D
Statement II: z<1/z
This applies when z <0.
e.g. -7<-1/7
But we cannot certainly derive value of z from statement II.
Statement II alone is not sufficient.
Combining statement I and statement II
z is <0 and z can be -7.
Z is -7.
C is the answer
Posted from my mobile device
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