Flow Speed in Perforated Hoses

A water spray gun is attached to a hose of cross sectional area $30\,\mathrm{cm}^2$ . The gun comprises of 10 perforations each of cross sectional area of $15\,\mathrm{mm}^2$. If the water flows in the hose with the speed of 50 cm/s, calculate the speed at which the water flows out from each perforation. (Neglect any edge effects)