Filling a rigid air store

A fixed-volume air vessel initially holds $2.40\,\mathrm{kg}$ of air at $120\,\mathrm{kPa}$ absolute and $295\,\mathrm{K}$. After additional air is injected, the vessel contains $0.650\,\mathrm{kg}$ more air at a final uniform temperature of $330\,\mathrm{K}$. Determine the final pressure, assuming ideal-gas behaviour and no volume change.