Chemistry - Ideal Gas Question with Solution | TestHub

$\mathrm{AV}\mathrm{dm}{}^3$ flask contains gas A and another flask of $2\mathrm{V}{\mathrm{dm}}^3$ contains gas B at the same temperature. If density of gas A is $3.0\mathrm{g}{\mathrm{dm}}^{-3}$ and that of gas B is $1.5\mathrm{g}{\mathrm{dm}}^{-3}$ and mol. wt. of $\mathrm{A}=1/2\mathrm{mol}$. wt. of B , then the ratio of partial pressure of gas A to that of gas B is