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jamifahad
Joined: 03 Mar 2010
Last visit: 14 Mar 2015
Posts: 256
Own Kudos:
Given Kudos: 22
Schools: Simon '16 (M$)
18 Jul 2011, 05:10
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
52% (01:32) correct
48%
(01:20)
wrong
based on 39
sessions
History
Date
Time
Result
Not Attempted Yet
If x + y is an integer, is y an integer?
(1) x – y is an integer.
(2) x + 2y is an integer.
OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/if-x-y-is-an- ... 28412.html
(1) x – y is an integer.
(2) x + 2y is an integer.
OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/if-x-y-is-an- ... 28412.html
18 Jul 2011, 05:32
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jamifahad
1)
x=1.5, y=0.5
OR
x=1, y=2
Not Sufficient.
2)
x+2y=integer
x+y+y=integer
We know x+y=integer
integer+y=integer
y must be an integer
Sufficient.
Ans: "B"
18 Jul 2011, 06:36
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B is sufficient....B is the answer
