The diagram illustrates two immiscible liquids, P and Q, which remain in equilibrium within an open U-tube. The three distances marked $x$ are equal. Determine the ratio $\dfrac{\text{density of P}}{\text{density of Q}}$?
- A$\frac{1}{2}$
- B$\frac{2}{3}$
- C$\frac{3}{2}$
- D$2$