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Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  If w ≠ 0 and w = 2x = 2y , what is the value of w – x in terms of y ?

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Math Expert V
Joined: 02 Sep 2009
Posts: 58396
If w ≠ 0 and w = 2x = 2y , what is the value of w – x in terms of y ?  [#permalink]

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Difficulty:   35% (medium)

Question Stats: 77% (01:49) correct 23% (02:35) wrong based on 26 sessions

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If w ≠ 0 and $$w = 2x = \sqrt{2y}$$ , what is the value of w – x in terms of y ?

(A) 2y

(B) $$\frac{\sqrt{2}y}{2}$$

(C) $$\sqrt{2y}$$

(D) $$\frac{4y}{\sqrt{2}}$$

(E) y

Source: Nova GMAT
Difficulty Level: 600

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Originally posted by Bunuel on 09 Apr 2019, 22:54.
Last edited by SajjadAhmad on 07 Jul 2019, 00:22, edited 1 time in total.
GMAT Club Legend  D
Joined: 18 Aug 2017
Posts: 5027
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: If w ≠ 0 and w = 2x = 2y , what is the value of w – x in terms of y ?  [#permalink]

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1
Bunuel wrote:
If w ≠ 0 and $$w = 2x = \sqrt{2y}$$ , what is the value of w – x in terms of y ?

(A) 2y

(B) $$\frac{\sqrt{2}y}{2}$$

(C) $$\sqrt{2y}$$

(D) $$\frac{4y}{\sqrt{2}}$$

(E) y

$$w = 2x = \sqrt{2y}$$
w-x= $$\frac{\sqrt{2}y}{2}$$

IMO B
Intern  B
Joined: 15 Feb 2019
Posts: 15
Re: If w ≠ 0 and w = 2x = 2y , what is the value of w – x in terms of y ?  [#permalink]

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w=2x=√2y

w=2x
Therefore, w-x=2x-x=x
Now what is x,
2x=√2y
x=√2y/2...That's the answer B

Posted from my mobile device Re: If w ≠ 0 and w = 2x = 2y , what is the value of w – x in terms of y ?   [#permalink] 10 Apr 2019, 03:31
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If w ≠ 0 and w = 2x = 2y , what is the value of w – x in terms of y ?

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