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What it the value of x - y ? (1) x + 2y = 11 (2) 4x - 4y = 8

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What it the value of x - y ? (1) x + 2y = 11 (2) 4x - 4y = 8  [#permalink]

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New post 09 Jun 2020, 07:49
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Question Stats:

88% (00:25) correct 13% (00:44) wrong based on 40 sessions

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What it the value of x - y ?

(1) x + 2y = 11
(2) 4x - 4y = 8
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V
Joined: 19 Oct 2018
Posts: 2062
Location: India
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Re: What it the value of x - y ? (1) x + 2y = 11 (2) 4x - 4y = 8  [#permalink]

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New post 09 Jun 2020, 09:43
Statement 1

x + 2y = 11
x-y+3y =11
x-y = 11-3y

We have no idea about y

Insufficient

Statement 2

4x-4y =8
4(x-y) =8
x-y = 2

Sufficient


TheUltimateWinner wrote:
What it the value of x - y ?

(1) x + 2y = 11
(2) 4x - 4y = 8
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Re: What it the value of x - y ? (1) x + 2y = 11 (2) 4x - 4y = 8  [#permalink]

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New post 09 Jun 2020, 09:51
TheUltimateWinner wrote:
What it the value of x - y ?

(1) x + 2y = 11
(2) 4x - 4y = 8


Asked: What it the value of x - y ?

(1) x + 2y = 11
x - y + 3y = 11
Since y is unknown
NOT SUFFICIENT

(2) 4x - 4y = 8
x - y = 2
SUFFICIENT

IMO B
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Re: What it the value of x - y ? (1) x + 2y = 11 (2) 4x - 4y = 8   [#permalink] 09 Jun 2020, 09:51

What it the value of x - y ? (1) x + 2y = 11 (2) 4x - 4y = 8

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