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If xy ≠ 0, what is the ratio of x/6 to y/7?

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If xy ≠ 0, what is the ratio of x/6 to y/7?  [#permalink]

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New post 26 Mar 2018, 23:20
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A
B
C
D
E

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  25% (medium)

Question Stats:

94% (00:52) correct 6% (02:42) wrong based on 25 sessions

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Re: If xy ≠ 0, what is the ratio of x/6 to y/7?  [#permalink]

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New post 27 Mar 2018, 00:15
Bunuel wrote:
If xy ≠ 0, what is the ratio of x/6 to y/7?

(1) 7x = 6y
(2) x = 6


we are asked to find out the ration of x/6 to y/7 which is equivalent to 7x/6y
1. 7x=6y
7x/6y=1
so, sufficient.
2. we only know the value of x. insufficient.
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Re: If xy ≠ 0, what is the ratio of x/6 to y/7?  [#permalink]

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New post 27 Mar 2018, 00:20
Clearly A.

Statement 1 is sufficient.

Statement 2 offers no information about y. Therefore, insufficient.

IMO A

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Re: If xy ≠ 0, what is the ratio of x/6 to y/7?  [#permalink]

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New post 27 Mar 2018, 00:38
Bunuel wrote:
If xy ≠ 0, what is the ratio of x/6 to y/7?

(1) 7x = 6y
(2) x = 6


We know xy ≠ 0, so it is OK to divide by either x or y.
What is x/6 : y/7

\(\frac{x}{6}*\frac{7}{y}\) ... dividing by fraction is same as multiplying by it's reciprocal.
\(\frac{7x}{6y}\)

(1) \(7x = 6y = \frac{7x}{6y} = 1\) Sufficient.

(2) x = 6 .. nothing about y is given. Not suff

Hence Option (A) is correct.

Best,
Gladi :-D
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Re: If xy ≠ 0, what is the ratio of x/6 to y/7?   [#permalink] 27 Mar 2018, 00:38
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