CasperMonday wrote:
\(x\) equals to \(y%\) of what number?
(1) \(x=3y\)
(2) \(6y+2x=\frac{56x}{14}\)
X equals to Y% of what number?
Let the number\(y%\) of which is\(x\) be\(z\) -->\(\frac{y}{100}*z=x\) -->\(z=\frac{100x}{y}\) . Basically we need to calculate the ratio\(\frac{x}{y}\) .
(1) X = 3Y -->\(\frac{x}{y}=3\) . Sufficient.
(2) 6Y+2X = 56X/14 -->\(6y+2x=4x\) -->\(6y=2x\) -->\(\frac{x}{y}=3\) . Sufficient.
Answer: D.
OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/x-equals-to- ... 08327.html
...
.jpg)
