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If 2x – 4y = 13, what is the value of x?

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Joined: 02 Sep 2009
Posts: 43804
If 2x – 4y = 13, what is the value of x? [#permalink]

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New post 04 Apr 2017, 03:40
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A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

80% (01:09) correct 20% (01:04) wrong based on 30 sessions

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Joined: 27 May 2014
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GMAT 1: 730 Q49 V41
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Re: If 2x – 4y = 13, what is the value of x? [#permalink]

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New post 04 Apr 2017, 03:51
Equation: 2x – 4y = 13

(1) x is a positive integer. Not enough information. Insufficient.

(2) 5y = 3x; One can substitute y with x in the equation and can get x. Sufficient.

Answer B.
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Joined: 29 Jan 2017
Posts: 2
GMAT 1: 600 Q47 V27
Re: If 2x – 4y = 13, what is the value of x? [#permalink]

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New post 04 Apr 2017, 03:58
y=(3*x)/5
=> 2x-4*(3*x)/5=13
=> 10x-12x=65
=> -2x=65
=> x=-65/2

Hence, B is correct.


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Re: If 2x – 4y = 13, what is the value of x?   [#permalink] 04 Apr 2017, 03:58
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If 2x – 4y = 13, what is the value of x?

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