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What is the value of x ? (1) y - x = y - 6 (2) x + 2y = 10

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Math Expert
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V
Joined: 02 Sep 2009
Posts: 49251
What is the value of x ? (1) y - x = y - 6 (2) x + 2y = 10  [#permalink]

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New post 04 Jul 2018, 00:17
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

96% (00:23) correct 4% (00:58) wrong based on 45 sessions

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Senior Manager
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S
Joined: 21 Jan 2015
Posts: 347
Location: India
Concentration: Strategy, Marketing
GMAT 1: 620 Q48 V28
GMAT 2: 690 Q49 V35
WE: Sales (Consumer Products)
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Re: What is the value of x ? (1) y - x = y - 6 (2) x + 2y = 10  [#permalink]

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New post 04 Jul 2018, 00:23
Ans: A
from stat 1) y-x=y-6
-x =-6 so x=6 (Suff)
from stat 2) x+2y =10
x=10-2y (Unless we know y, we can not find out value of x so) (Not Suff.)
Bunuel wrote:
What is the value of x ?

(1) y - x = y - 6

(2) x + 2y = 10

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Re: What is the value of x ? (1) y - x = y - 6 (2) x + 2y = 10  [#permalink]

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New post 04 Jul 2018, 04:36
Bunuel wrote:
What is the value of x ?

(1) y - x = y - 6

(2) x + 2y = 10



we are looking for the value of x.


Statement 1:

y-x = y-6

x = 6

Sufficient .


Statement 2 :

x + 2y = 10

As we don't know the value of y , it is not possible to determine the value of x.

NOT Sufficient .


Thus the best answer is A.
Re: What is the value of x ? (1) y - x = y - 6 (2) x + 2y = 10 &nbs [#permalink] 04 Jul 2018, 04:36
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