A closed container of volume $0.02m^3$ contains a mixture of neon and argon gases, at a temperature of $27^o$C and pressure of $1\times 10^5$ $N/m^2$. The total mass of the mixture is $28$ gm. If the gram molecular weights of neon and argon are $20$ and $40$ respectively, find the masses of the individual gases in container, assuming them to be ideal.(Universal gas constant R$=8.314$ J/mol. K)