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28 May 2017, 02:04
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
65% (01:12) correct
35%
(01:24)
wrong
based on 43
sessions
History
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Time
Result
Not Attempted Yet
Is –x – y > –u – v ?
(1) x < u and y < v.
(2) x = 3, y = 4, u = 7, and v = 9
(1) x < u and y < v.
(2) x = 3, y = 4, u = 7, and v = 9
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28 May 2017, 04:16
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converting the equation to x+y<u+v by multiplying -1 both the sides converting to x-u<v-y
(1) says if x<u and y<v then x-u<0 and v-y>0 hence sufficient to answer the question
(2) on substitution we can answer the question
hence option D
Sent from my iPhone using GMAT Club Forum
(1) says if x<u and y<v then x-u<0 and v-y>0 hence sufficient to answer the question
(2) on substitution we can answer the question
hence option D
Sent from my iPhone using GMAT Club Forum
29 May 2017, 01:51
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(1) X<U............(a)
Y<V............(b)
Add (a)+(b)
x+y<u+v........(c)
Multiple (c) with -1
-x-y>-u-v [Suff]
(2) x = 3, y = 4, u = 7, and v = 9
x=3; u=7. So x<u
y=4; v=9. So y<v
Which is similar to (1) [Suff]
Answer: D.
Kudos please if you like my explanation!
Y<V............(b)
Add (a)+(b)
x+y<u+v........(c)
Multiple (c) with -1
-x-y>-u-v [Suff]
(2) x = 3, y = 4, u = 7, and v = 9
x=3; u=7. So x<u
y=4; v=9. So y<v
Which is similar to (1) [Suff]
Answer: D.
Kudos please if you like my explanation!
