The rate of diffusion of two gases A and B are in the ratio $1\mathrm{}:4$ $\left(\mathrm{a}\mathrm{s}\mathrm{s}\mathrm{u}\mathrm{m}\mathrm{e}\mathrm{};\mathrm{}{\mathrm{P}}_{\mathrm{A}}={\mathrm{P}}_{\mathrm{B}}\right).$ In other experiment a mixture contains these gases A and B in the mole ratio $2\mathrm{}:3.$ The ratio of mole fraction of the gases A and B in the diffused mixture is –