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# If y ≠ 0, is x/y=1/2?

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Board of Directors
Joined: 01 Sep 2010
Posts: 3405
If y ≠ 0, is x/y=1/2?  [#permalink]

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01 Nov 2018, 03:20
Top Contributor
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Difficulty:

15% (low)

Question Stats:

84% (00:46) correct 16% (01:37) wrong based on 33 sessions

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If $$y ≠ 0$$, is $$\frac{x}{y}=\frac{1}{2}$$?

(1) x is 50 percent of y
(2) 0.1x = 0.05y

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Joined: 07 Dec 2017
Posts: 1153
Re: If y ≠ 0, is x/y=1/2?  [#permalink]

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01 Nov 2018, 04:24
carcass wrote:
If $$y ≠ 0$$, is $$\frac{x}{y}=\frac{1}{2}$$?

(1) x is 50 percent of y
(2) 0.1x = 0.05y

As all we're given are equations, we'll work with them.
This is a Precise approach.

(1) so x = 0.5y meaning that x/y = 0.5 = 1/2.
Sufficient.

(2) Again, simplifying directly gives the answer. (we don't have to actually calculate!)
Sufficient.

(D)
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Re: If y ≠ 0, is x/y=1/2?   [#permalink] 01 Nov 2018, 04:24
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