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What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13

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Bunuel
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What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13 [#permalink] New post   08 Jul 2016, 07:56
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A
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E

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82% (00:57) correct 18% (00:42) wrong based on 94 sessions
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What is the value of X+Z?

(1) X+Y=11
(2) Z+Y=13
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E
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paidlukkha
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Re: What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13 [#permalink] New post   09 Jul 2016, 02:06
C

x+y = 11
x+13-z=11
x-z=-2

z+y=13
z+11-x=13
z-x=2

x=2
y=4
z=9
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Re: What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13 [#permalink] New post   09 Jul 2016, 02:19
paidlukkha wrote:
C

x+y = 11
x+13-z=11
x-z=-2

z+y=13
z+11-x=13
z-x=2

x=2
y=4
z=9


Hi paidlukkha,

The answer is not C.

Even if you combine St1 and St2, you can deduce the value of x + 2y + z or x - z. We will not be able to find the value of x + z

Answer: E
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Re: What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13 [#permalink] New post   09 Jul 2016, 02:32
Vyshak wrote:
paidlukkha wrote:
C

x+y = 11
x+13-z=11
x-z=-2

z+y=13
z+11-x=13
z-x=2

x=2
y=4
z=9


Hi paidlukkha,

The answer is not C.

Even if you combine St1 and St2, you can deduce the value of x + 2y + z or x - z. We will not be able to find the value of x + z

Answer: E



we do not have more than 1 value for x & y & z respectively to satisfy given statements
X+Y=11
Z+Y=13
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Re: What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13 [#permalink] New post   09 Jul 2016, 02:45
paidlukkha wrote:
Vyshak wrote:
paidlukkha wrote:
C

x+y = 11
x+13-z=11
x-z=-2

z+y=13
z+11-x=13
z-x=2

x=2
y=4
z=9


Hi paidlukkha,

The answer is not C.

Even if you combine St1 and St2, you can deduce the value of x + 2y + z or x - z. We will not be able to find the value of x + z

Answer: E



we do not have more than 1 value for x & y & z respectively to satisfy given statements
X+Y=11
Z+Y=13


When X = 4; Y = 7; Z = 6 --> X + Z = 10
When X = 5; Y = 6; Z = 7 --> X + Z = 12

Multiple values for x, y and z are possible.
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paidlukkha
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Re: What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13 [#permalink] New post   09 Jul 2016, 02:51
[/quote]

When X = 4; Y = 7; Z = 6 --> X + Z = 10
When X = 5; Y = 6; Z = 7 --> X + Z = 12

Multiple values for x, y and z are possible.[/quote]


:shock: :shock:
I kept y value constant
Thanks :-D
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Re: What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13 [#permalink] New post   09 Jul 2016, 06:45
paidlukkha wrote:


When X = 4; Y = 7; Z = 6 --> X + Z = 10
When X = 5; Y = 6; Z = 7 --> X + Z = 12

Multiple values for x, y and z are possible.[/quote]


:shock: :shock:
I kept y value constant
Thanks :-D[/quote]

you can just find out x-y or y-x

x+z is not possible
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gmatclubot
Re: What is the value of X+Z? (1) X+Y=11 (2) Z+Y=13 [#permalink]
09 Jul 2016, 06:45
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Bunuel
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