If \(y\ne 0,\) is \(\dfrac{x}{y}\) an integer?

[Vincen]

If \(y\ne 0,\) is \(\dfrac{x}{y}\) an integer?

(1) \(x-2y=0\)

(2) \(x=\sqrt{60}\) and \(y=\sqrt{15}\)

Answer: D

Source: GMAT Prep