Two elements X and Y form two different compounds having formulas...

Two elements $\text{X}$ and $\text{Y}$ form two different compounds having formulas $\text{X}_5\text{Y}_2$ and $\text{XY}_2$. The atomic mass of element $\text{X}$ is twice the atomic mass of element $\text{Y}$. If equal masses of both the compounds are taken, the ratio of the number of moles of $\text{XY}_2$ to the number of moles of $\text{X}_5\text{Y}_2$ is _____.