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20 Dec 2015, 06:04
Kudos
Bookmarks
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:
75% (01:30) correct
25%
(01:26)
wrong
based on 154
sessions
History
Date
Time
Result
Not Attempted Yet
Is x – 2y + z greater than x + y – z?
(1) y is positive.
(2) z is negative.
(1) y is positive.
(2) z is negative.
21 Dec 2015, 04:53
Kudos
Bookmarks
x - 2y + z > x + y – z
=> 2z > 3y
(1) y is positive.
Not sufficient
(2) z is negative.
Not sufficient
Combining 1 and 2 ,
Sufficient
Answer C
=> 2z > 3y
(1) y is positive.
Not sufficient
(2) z is negative.
Not sufficient
Combining 1 and 2 ,
Sufficient
Answer C
21 Dec 2015, 08:44
Kudos
Bookmarks
Let x=1, y=2 and z=3
(1) y is positive.
putting the values x=1, y=2 and z=3....Insuff
(2) z is negative.
putting the values x=1, y=2 and z=-3
The expresssion x – 2y + z greater than x + y – z...Suff
Ans: B
(1) y is positive.
putting the values x=1, y=2 and z=3....Insuff
(2) z is negative.
putting the values x=1, y=2 and z=-3
The expresssion x – 2y + z greater than x + y – z...Suff
Ans: B
