CasperMonday wrote:
\(x\) equals to \(y%\) of what number?
(1) \(x=3y\)
(2) \(6y+2x=\frac{56x}{14}\)
OA
Please explain
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Questions like these just try to confuse you with 'what are you looking for?'
We know the question is in the question stem so read it carefully:
\(x\) equals to \(y%\) of what number? This 'what number' is what I am looking for. So, let me rephrase: \(x\) equals to \(y%\) of z or \(x = \frac{y}{100} * z\)
or \(z = \frac{100x}{y}\)
What we want to find is 'z' i.e. x/y
Stmnt 1: x = 3y implies x/y = 3. Hence sufficient to get z
Stmnt 2: \(6y+2x=\frac{56x}{14}\)
Rearrange: 6y = 2x or x/y = 3. Sufficient to get z.
Hence answer is (D).
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Karishma
Veritas Prep GMAT Instructor
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