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If xy ≠ 0, what is the ratio of y to x? (1) y = 3x (2) x = 11

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If xy ≠ 0, what is the ratio of y to x? (1) y = 3x (2) x = 11  [#permalink]

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New post 30 Mar 2016, 03:26
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Re: If xy ≠ 0, what is the ratio of y to x? (1) y = 3x (2) x = 11  [#permalink]

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New post 30 Mar 2016, 22:49
Forget conventional ways of solving math questions. In DS, Variable approach is the easiest and quickest way to find the answer without actually solving the problem. Remember equal number of variables and independent equations ensures a solution.

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

(1) y = 3x

(2) x = 11


When one con is number and the other con is ratio, it is most likely that ratio is the answer.
For 1), y=3x -> y:x=3x:x=3:1, which is sufficient.
Thus, the answer is A.


 from con 1) and con 2), if one of the conditions is given by numbers and the other is given by ratio (percent,fraction), then the condition with ratio (percent,fraction) value has higher chance of being the answer.
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Re: If xy ≠ 0, what is the ratio of y to x? (1) y = 3x (2) x = 11  [#permalink]

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New post 18 Aug 2018, 02:49
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Re: If xy ≠ 0, what is the ratio of y to x? (1) y = 3x (2) x = 11 &nbs [#permalink] 18 Aug 2018, 02:49
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